the photoconjugation of bilirubin
red light important for acne phototherapy
the lowest height of the sun for sufficient vitamin d in cows cream
john keats - negative capability and dying in winter of TB, also vitamin D and immune system study
------------------------------
did you know that the sun can knock bits off viruses or whatever in the top 2mm of of the body surface and these become antigens for the immune system to act on?
part of the reason we do better in summer is this action by the sun on the skin
its not just the uvb rays in the sunlight that makes vitamin d, but the blue, green going through to red that penetrates up to say 2mm that also has a very
beneficial immune system effect as well as relieving the liver by conjugating bilirubin
unfortunately this isn't the case for herpes which is activated by sunlight
a possible mechanism for the innoculative effect of the sun on the skin is skin resident dentritic cells, killer and memory t-cells
any fragments knocked off pathogens in the skin capillaries or resident in skin cells by the suns rays can be immediately incorporated into the bodies immune response with very intense identification study
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vitamin d is made in the skin by uv-b on the border of uv-c (wavelengths 290-305 nm with a peak of 297nm) striking 7-dehydrocholesterol in the skin and converting to pre vitamin d, tachysterol and lumisterol.
possibly down to 280 nm is still effective
the 7-dehydrocholesterol which resides in the plasma membrane of epidermal and dermal cells has the highest concentrations in the lower two layers of the epidermis
wether there is some benefit in not washing before or after sunbathing or sunlamping so the oils in the skin are absorbed, i don't know, or if washing beforehand by removing skin oils would make the photoconversion of 7-dehydrocholesterol into pre-vitamin d more efficient.
subaceous glands and keratin also contain 7-dehydrocholesterol so there may be an advantage to not washing immediately after sun/uvb exposure, especially given the skin being made more permeable by the uvb exposure, but its hard to say.
update: i think at this point that the oils and fat on the skin shield the internal cell membranes (where the vitamin d is formed) from uvb and any vitamin d formed in the oils ON the skin is not absorbed
its better to avoid showering to soon afterwards because you are thermally stressing skin that has already been damaged from irridation
pre vitamin d, tachysterol and lumisterol are formed in ratio depending on the exact mix of wavelengths and relative strengths in the incident radiation
the pre vitamin d is isomerised to vitamin d by body heat in the hours after exposure peaking at say 14? hours after exposure
this depletes the ratio of pre vitamin d and when the skin is exposed again the ratio is re-established.
the optimium wavelengths for vitamin d are also on the upper edge of the erythema index, though the degree of burning feeling on the skin seems to be a good indication of the strength of the 290-305nm wavelength. however in theory the 290-305nm could be cut off and you just get burning without vitamin d being made.
the strength of the incoming 290-305nm sun rays are reduced by stratospheric ozone, 275-300 dobson seems to work well with sun elevation above say 68 degrees for good skin D. 250-275 dobson with a solar elevation of 65 degrees with clear air is also ok
300-325 dobson is getting a bit high but for latitudes higher than 40 degrees (eg columbus ohio and north) its the lowest you can get generally in summer. unfortunately the stratospheric ozone levels modulate the wrong way for optimal sun-skin exposure, peaking in late spring and lowest in late autumn/early winter.
very high cloud (mares tails, cirrus, cirro-stratus) are ice crystals (hence the halos) which is very reflective of uvb, so amplifies it. lower cloud postioned below the sun can also provide reflection of uvb provided the cloud is not blocking the sun
good cloud reflection can amplify uvb by up to 20% and extend the useful sunbathing time around solar noon considerably.
the solartech solarmeter 6.4 or 6.5 is very useful in determing uvb levels.
this is a meter that measures the strength of the vtiamin d rays in the sun, a reading of 70 (6.4 meter) and up usually indicates high enough to get useful rays but imo 90 rocks and below 80 is not much good
there was only the 6.4 meter when i bought it, i'd go for the 6.5 now
don't leave the meter in the sun as if it gets hot the readings start to go high
best stored in a dry warm(?) spot in the house
you just angle the front of the meter towards the sun to get the highest reading and hold the button down
in tasmania and the very north of the south island in new zealand at aprox 41 degrees south its only really around solar noon that you get a decent strength of the vitamin d band and given the high ozone levels there is a useful window of about five weeks before the summer solstice and seven weeks after
anyway by the first week in feb (if warm enough) is about it in the north of tasmania for any sort of skin sun.
males should bear in mind that the thin skin of the gential area needs protection, especially if you are circumcised.
similarly the stomach skin is thinner and more vulnerable than the thicker skin of the upper back.
wunderground for solar elevation and time of solar noon. set 'astronomy' on extended view. solar elevation is the angle between the horizon and the sun in the sky.
solar altitude and azimuth for any day of the year us naval observatory
a solar elevation of about 67 degrees and stratospheric ozone of 250-275 dobson is really the minimium for good skin D sun. cold and wind is another factor curtailing useful exposure with declining solar elevation. dobson levels above 300 push the useful elevation needed up to over seventy degrees.
74 degrees and above is the really good stuff, at that height it may even get enough into the skin blood to kill a few viruses and provide an 'innocualtion' or some dead viruses in the blood so the immune system can see them as some viruses seem to have good stealth, especially with biofilm
longer lower sun exposures are also very useful for innoculation
when you get the right sun you feel better almost immediately.
it will also reduce bilirubin levels, relieving the liver of metabolic load, however longer lower sun alittude exposures may be better for bilirubin conjugation
part of that feeling better is the photoconjugation of bilirubin enabling ready excretion without it having to be conjugated in the liver first (see section below )
you do need some saturated fat in your diet. bone marrow fat and diary fats are best to make the cholesterol (7-dehydrocholesterol which is in fact a precursor to cholesterol and resides in the plasma membane of dermal and epidermal cells) that gets converted to vitamin d.
too high an polyunsaturated oil intake and not enough saturated fats will show as very short times before becoming pink in the sun. a higher saturated fat intake requires exercise to reduce cardiovascular problems, see the 'scd and diets q&a' page in the compendium index.
low vitamin A also contributes to short times before going pink, as the storage form of vitamin A, (retinyl esters) in the skin protects (by absorbing uvb).
this also destroys the retinyl esters i think and retinyl aceate supplementation after intense uvb/sun exposure may be a good idea
its a good indicator of general nutrition and health how long it takes to go slighly pink. some very slight pinks will dissappear within several hours, i sometimes stay out long enough that happens but really i think its better not to go pink at all.
high levels of skin vitamin d seems to reset immune system and other genes and their expression. it does this by the high constant release of various pathways from the vitamin d hormone.
uvc and uvb tend to cleave dna (uvc can form dna dimers as well i think) while uva tends to oxidise....................
exposure to true spectrum sunlight has mechanism's to inhibit the potential of melanoma. adequate immune function and good levels of the immune enhancing supplements vitamin a, d, b's expecially b12, and the thyroid minerals (including iodine selenium and zinc ) have a huge bearing on reducing melanoma potential.
the widespread use of fluoridated toothpaste and water with the fluoride depressing enzyme function and displacing iodine is a signficant factor in rising melanoma rates imo.
without adequate 290-305nm the longer wavelength uvb and uva sunlight tends to oxidise and destroy vitamin d.
the basic theory is that with shortish exposures of high levels of 290-305nm sun considerably less exposure is required to make pre vitamin d and hence the total uv burden is reduced making for less carcinogenic potential while getting the cell differentiating pluses of skin vitamin d.
the nature of sunlight is for integrated doses, that is, high intensity for a short time is similar to lower intensity for a longer time.
i feel it is better to remain covered up when not getting this high 290-305 nm exposure.
at very high elevations of the sun (80? degrees or greater) with low ozone and very clear skies exposure may be as short as 30 seconds. it may be that there is some optimal window between about 74 and 80 degrees of solar elevation for sun exposure depending on atmospheric clarity, stratospheric ozone levels, and racial type.
another thing to consider for ms, ibs and colitis is that these illnesses are strongly correlated with more polar northern and southern latitudes and there may be considerable benefit in the ideas discussed above. as far as i can see this sort of sunlight modulates the immune system making for less inflamation or auto immune action. childhood exposure to this 290-305nm band may be very significant for reducing susceptiblity to ms, auto immune diseases and diabetes. ms and diabetes are immunologically almost the same and both the pancreas and myelin sheathing on the nerves appear primary targets of immune upset. the hep b vaccine looks downright dangerous in this context.
one thing to watch when sunbathing is that the spot should be warm/windless and you shouldn't have any viruses or flu's, as with vit d (skin or oral) you get a temporary supression of the immune system and actually one of the problems with too much vit d is immune system supression, but too little vit d and all the bodies hormones and steriods drop too low.
theres a definite window of too much and too little vitamin d and this applies wether skin or oral.
you can get quite large amounts of vitamin d through dairy fats in summer months, though don't use homogenised milk or homogensied creams as homogenising seems to entrap caesien and other milk peptides on the surface of the smaller reformed fat gloubules and faciliate the passing of these highly negatively bioactive peptides undigested across the gut wall and into the blood where they distort the immune function and have opiod and other effects (including migraine).
large amounts of vitamin d reduce the killer t cells count, vitamin d improves the ability of the immune system to differentiate between harmful (viruses, invading pathogens, cancerous cells) and good in the body but to much reduces the killer t cell counts in an absolute sense as well.
one of the tragedies today is mothers not having adequate vitamin d in pregnancy leaving their babies with auto-immunity issues in their early life from over active immune systems from lack of damping by adequate vitamin d and then getting the hep b vaccine which excites the over-reactive immune system to destroy the pancreas islets, hence the out of control increase in diabetes and brain blood sugar issues (adhd)
good michael holick video, the original skin vitamin d guru, titled “the vitamin D deficiency pandemic and its health consequences”
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for all of human evolution, viruses were not anything like as prevelant as now and immune supression with skin vitamin d in summer was never an issue, but with the start of the viral holocast about 1990 with the disasterously cruel vaccination of newborns and children too young to be vaccinated with vaccines designed for adults in the usa (and increasingly in other countries like the uk), which coupled with high asian travel mobility has created a permanent reservoir of mutating viruses in the general population and children, so the viral impress is chronic and year around.............
this means that too much vitamin d is now an issue and we are caught in a trap of needing the highish vitamin d for hormone and steriod and types of immune function in the body, but also needing a high absolute t cell count for viral resistance.
some sunscreens appear to form carcinogenic compounds in sunlight and condition the skin predisposing to skin cancer. unless there is an issue with scattered horizontal light like from water or snow when something on the nose and lips may be needed its far better to screen by adequate clothing (long sleeved shirts!) and hats imo. the skin is very absorbative of chemicals put on it and sunscreen is a lot of chemicals so there are going to be all sorts of metabolic processing issues with them not to mention subtle interactions which cannot but help expose the person to a more serious risk of maligant skin cancer (superfical and the total number of skin cancers however may be considerably reduced). rashes from sun screens are an extreme of a failure of metabolic processing.
4-methyl-benzylidene camphor (4-MBC), a uv blocker used in sunscreens, is a goitrogen article
benzophenone 2 (BP2) another sunscreen chemical but also used in fragrances inhibits thryoid hormone biosynthesis study
an email (18 june 04) titled 'skin vitamin d'
I want to thank you for all that useful information on your web site.
We are fortunate to get some very good sun here and my daughter has
gone from pasty to quite pink and healthy looking, lost some of the
dark circles and she is is a much better mood. (CL)
my reply:
its quite important to track the solar elevation and stratospheric ozone as per the skin vitamin d page links (near the top of this page) so that you get the best benefit and also can extend the season as long as possible and also know when to cut off getting the sun because below a solar elevation of about 68 degrees, skin sun goes the other way, more oxidation than benefit.
from an enzymesandautism (21 june 04) titled 'Vit. D - andrew'
this is what latitude and longitude is
you don't have to understand it much, just use the links on this web page to get the time of solar noon in a nearby city and the alitude which is how high the sun is at solar noon. and keep an eye on the stratospheric ozone, too high and it cuts off the vitamin d making sun too much.
you cannot overdose on skin vitamin d , the body has mechanisms to regulate it. oral vitamin d you can overdose on though i find at 120 lbs that 1000iu a day seems ok (i use the 'now' brand 1000 iu). i don't get much of the right sun here in tasmania australia though.
but skin vitamin d is better.
you need to know how to do this via the web links cause it changes as summer goes on
from an ezymesandautism post (21 june 04) re: a query about the sun stats on 21st june 04 near orlando florida
sounds a bit cloudy today and the humidity is something else :o)
solar noon or when the sun is highest is 1.27pm edt (from wunderground.com orlando florida)
solar altitude is very high at 84.9 degrees, cause its the longest day this will gradually drop.
at 1.27pm the sun is 84.9 degrees in the sky.
thsi may be a bit intense i can't really say, might be quite ok. you just have to experiment yourself with short exposures to get a feel for it. with really right sun you feel better during the exposure and for quite a while afterwards.
if its tad intense you just move a bit away from solar noon to get the sun at a lower angle
but moisture in the air blocks the right rays. pollution too.
a pecanbread (27 june 04) post titled 're: sunblock recommendations?'
the issue with any chemical on the skin is that it is absorbed from 20% to 100% and the issues range from promoting more invasive cancers to fouling the liver processing.
public health advice on sun exposure reflects the substanial grants that sunscreen companies make to university dermatology departments rather than anything that reduces cancer or is at all healthy for you and actually promotes immune reactivity and coliltis in a major way
its not black and white, like blocks on the nose and lips are only a small surface area, yet a cover a large percentage of the bodies most susceptible areas
an email (17th july 04)
I was just reading the information you have about vitamin D on your website. I think it's great! I just read something recently that might be important to add if you want to check it out for yourself later. I read in an recent Consumer (health) Reports the benefits of sunlight and vitamin D, however, windows blocks uv-b rays! So, if people are sitting in their sunny windows or driving around in their car thinking they're getting their vitamin D for the day, they are not! M. in Oregon
my reply:
"1:12 pm--- 001--- measurement taken on dash of my car through the untinted windshield. Myth: "you can get a tan through your car's windows." Truth: windshields of cars pass vitually zero UVB.... Side windows, if untinted, reportedly can pass up to about 25% of the UVB, but I personally have never measured even an untinted side window that passed more than 3%."
from oregonphotos.com
i would say that house glass was equivalent to side windows.
yeah i think on balance skin exposure to sunlight through glass is better avoided because of its high preponderance of oxidising uva and attentuation of uvb.
uva and uvb through car windows
a yahoo 'who knows' post (7th august 04) titled 'solar dimming'
this is why my skin vitamin d page is important
the climate is changing and less sun is getting through to the earths surface
basically man made aerosols and cloud vapour forming on them are increasing the reflection of sunlight from the earths surface so if the days seemed sunnier 30 years ago they really were.
about 16% since 1950 to now by my calculation and likely much higher for the easily attenuated vitamin d rays, could be as high as 30%. this is earth shattering actually.
it seems to be happening in a very obvious way in tasmania, much more cloud and dampness and evenness of temperature over the year with less of very cold dry winters and hot clear summers
it could also be that at last we are re-entering what may eventually turn into the ice age that is the earths main state, i think it only spends about 10% of its time out of it. global warming though appears to be real so who knows how it will turn out but less sun appears to be part of it. antarctic ice cores indicate that there is another ten thousand years before the ice age starts again.
an who knows post (10th august 04)
Do your vitamin A levels "drop" if you get a large amount of skin vitamin D? That is, when we were visiting family in upstate NY,
E. spent a lot of time in the sun, all at once. About four or five hours. The next day, and for several days, he was very
intense, poor eye contact, and quick to lose his temper. I just wondered if perhaps he could have used more vitamin A supplementation to go along with the D? M.
my reply:
have u read my page? you need to understand sun angles
if you do you will see it talks about the wrong sun as well as the right sun (the wrong sun is too low in the sky or there is too much moisture or the air is too unclear)
the wrong sun will just oxidise vitamin a and d without giving any decent vitamin d or billirubin processing
upstate new york may only have the right sun for a the week of the year (at solar noon) just past the summer solstice
you can give vitamin a but in reality there will be thyroid mineralisation issues and a lack of bioavialable copper
four or five hours there's just no way he was getting the right sun there, just huge oxidative stress
i wish people would take the view that if things are right then they are right doing them and not expecting a bad result to lead to better
it is staggeringly difficult to get the right sun these days
a who knows thread (5th september 04) titled 'vitamin d advice'
M. writes:
I found this and never heard this advice about waiting an hour before showering after you've had your vit d sun exposure:
"It takes about 24 hours for UV-B-stimulated vitamin D to show up as maximum levels of vitamin D in the blood. Cholesterol-containing body oils are critical to this absorption process.(10) Because the body needs 30-60 minutes to absorb these vitamin-D-containing oils, it is best to delay showering or bathing for one hour after exposure. The skin oils in which vitamin D is produced can also be removed by chlorine in swimming pools." from
E's reply:
Hi M. , I've never heard of that either, Nor the use of cholesterol containing oils either to help aid absorbtion,
I have always showered straight away afterwards out of consern about possible mercury contained in sweat staying on the skin and being re absorbed, Can't offer anything useful Re opinion just found it interesting to read what you've posted here...........
my reply:
i think the 290-305 nm uvb striking the skin will convert both the surface oils/cholesterol and the fat within the skin
it may be a question of balancing tradeoffs, i think if the sweat dries any toxins in it are not well reabsorbed
so given that you are likely to be sunbathing in hot dry weather then perhaps a shower could be left a while or if you do shower then just enough to wash the sweat off and don't use soap.
in summer i have just washed under the outside hose after sunbathing which is cold and non chlorinated (bore water) which would just take the sweat and not the oils i think.
--------------------------------------------
a who_knows thread titled "Skin D cutoff time?" (august 2006)
[J. quoting from andrews writings]
"a solar elevation of about 69 degrees and stratospheric ozone of 250-275 dobson is really the minimium for useful sun. cold and wind is another factor curtailing useful exposure with declining solar elevation. dobson levels above 300 push the useful elevation needed up to over seventy degrees."
J. writes:
The dobson levels for most of USA is 300-325. Today the solar
elevation/altitude for where I live in southeast USA is 69.4
degrees. We went out today and the sun still felt really good, but
when I read the above paragraph from the site it seems we've reached
the cutoff point.
Is there any way to push it a bit till we get down to say 68 degrees
or would this be harmful considering the ozone levels?
It's a bit depressing- I really look forward to solar noon each day
and don't want it to end.
my reply:
there are a lot of depends, how warm the air is is important cause if
its cold then you get viral from the immune supression
also the highest vit d sun comes not from a clear sky but with very
high cloud acting like a lens
you might get away with down to 65 degrees
but once the sun height starts to drop it drops like a rock ;o)
i would be very interested to know how long you are able to keep going
J's reply:
Drop like a rock is right! Elevation is down to 69.1 today - seems to drop by .3 or .4 a day since it's peak.
It's a bit cooler today- mid 80's - temps will stay like this at least another few weeks.
I will keep pushing it then and see how it goes.
After midday sun, I feel great and uplifted. I've actually browned
this summer- usually I bounce the sun off my skin and stay pale.
I guess the sign the sun is too low is a loss of that elated,
energetic feeling?
Plus I should be able to judge by how hot the sun feels on the skin
as I try to make note of it as we sunbathe.
My son must like the feeling too - he will run up to me several times
a day and ask if it is good sun time yet. The other day I told him
good sun was almost gone for the year and he almost cried and wanted
to know how we would keep getting healthy without it!
I think allergic response in him and my daughter has greatly
decreased. He was stung twice by bees and within hours the stings
cleared almost away whereas my hubby's sting around the same time
stayed swollen for two days.
My daughter has always gotten very ill
when I try to feed her eggs, but this summer has worked up to 1/4 of
an egg in her morning pancakes (she is GF, lots of SCD foods, but
eats rice & potato, but no sugar) with no sign of stomach pain.
I hope these benefits last when the skin D is gone and we are on the supp.
eileens reply:
Thought I'd thro my 5 pence in since when its the right sun here I
go out into it in my birthday suit... ;o)
I've tried being greedy and squeezing a bit more from the sun when
it wasn't "right" (feel a bit tearful like your son when its going
going gone Lol)
The thing I noticed afterwards was in addition to the loss of that
enervated lift there was a distinct and unpleasant lull in feeling
good.
yeah doesn't seem to take long to drop once it's past peak
unfortunately, It also loses its bite on your skin, feels luke warm.
My daughter A. used to have a nasty reaction to jackjumper bites
but after being on the compendium supplements this seems to have
gone,
The last time she got bitten she was quite astonished to find hardly
any swelling at all when previously she'd swell up like a football.
I used to get smarting/streaming eyes in spring and autumn when the
Wattle trees flowered but now don't,
Amber used to have mild asthma at that time but no longer gets that
either.
Great to hear your family are seeing some benefits
J writes:
I think as far as getting that fantastic feeling I've become
addicted to- the good sun has gone for us (in Virginia USA).
Today's solar elevation was 67.9 degrees and surprisingly when I
checked the ozone map- the dobson was 275-300 for the first time
since I've been keeping tabs. Has been running 300-325 all summer.
Anyway, I've been keeping track of angles, temps and feelings and a
few days ago when solar elevation was 69.1, dobson 300-325, was the
last really really good sun with any "snap".
Rather depressing...
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THE PHOTOCONJUGATION OF BILIRUBIN
jaundice in everybody except newborn to several weeks old babies is most likely genetic, possibly a skewed gene expression of the liver enzymes responsible for breaking down bilirubin, or perhaps an overload of red blood cells from myeloproliferation
what works best is whole body sunbathing , the amount of time varies but at a solar altitude of about 53 degrees probably an hour is needed
as the solar altitude rises so the times have to be shorter, but possibly above 72 degrees the times may be too short to give enough exposure to the blood pumped through the skin capillaries
the sun just works way best, its black and white, lamps don't come within a cooee
solar altitude is the angle of the sun above the horizon
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“Light energy is absorbed by bilirubin as it circulates in skin capillaries, resulting in conversion of insoluble bilirubin to photoisomers (referred also as photobilirubin and lumirubin) which are water-soluble and readily excreted.” crigler-najjar syndrome article
recent research favours turquoise lamps over blue
a study with a graph showing the turquoise and blue tube wavelengths
this bilirubin photodegrading/conjugating sun peaks about 490nm and corresponds to violet/blue/green light or probably the bright white light in sunlight
it does seem to help with bilirubin processing and may well faciliate the dumping of heavy metals and toxins into bile (in combination with skin vitamin d)
also, i think the full spectrum sun can actually kill a few viruses in the blood in the skin and create a natural vaccine
uvb (6µm penetration @ 300nm, 37% intensity), uva (90µm @ 400 nm, 37% intensity) study
The yield of photodegradation per incident photon is about a factor 15–20 larger at 420 nm than at 632nm (see study below)
The penetration depth into rat skin is 0.3 mm at 420 nm and 2 mm at 632nm (red/orange) study
however the longer wavelengths like red can penetrate very deeply, say 10mm though not in intensities that are significant from a photodegradation point of view, but may be significant from a signalling point of view turning on metabolic pathways
ideally you want to be hot in intense sun for this; hot, so you are continually pumping lots of blood throught the skin to be exposed to the violet/blue/green rays in the sun; or at least doing physical work in the sun, so the circulation is reasonably rapid
a suitable sun altitude for this extends down to 48º, unlike the sun for uvb which seems to drop out below 69º
however i really prefer 72º and above, the "right sun"
my homebuilt uvb lamp has always been an important part of the compendium but thinking about bilirubin processing, i can see some decent 440nm sun is also important since longish exposures to vigorously circulating blood work better for the bilirubin photodegrading
full body exposure of intense sun is very oxidising and quite a stress on the body, so there are limitations to how much you can and should get of this sort of exposure.
there may be thyroid promotion from bilirubin conjugation by the sun since bilirubin interferes with the thyroid
even just sitting in the sun with the veins on back of the hands and top of the feet exposed is quite useful and wind tolerant when sun is short and its cool or cold
maybe why some people prefer to go barefoot?
_____________________________
bilirubin absorption wavelengths
405nm and 470nm kills antibiotic resistant staph study
_____________________________
optimal exposure for bilirubin is different from vitamin d
i do think the "right sun" strongly benefits both and thats my preference
but bilirubin needs quite long exposures and perhaps there is even a limitation on how intense/high the sun can be because of oxidation and burning
meaning a longer less intense exposure may be better than a shorter more intense exposure in terms of reducing bilirubin
how white the whites of the eyes are, may be a good indicator for the need to assist bilirubin conjugation with sunlight exposure, the whites should be quite white and any yellowish tinge is bilirubin, i think in more severe cases the sight can actually be tinged yellow
whereas for maximal vitamin d conversion you are trying to cover as much of the body as possible since you are irridating cholesterol in the skin membranes and some cholersterol conformations are much more easily converted than others
but for bilirubin conjugation you are trying to get into the blood with the deeper penetration of the violet/blue wavelenghts in the white light
this is actually a pumping system so part exposure of the body for a long period is adequate, obviously the more skin exposed the more the blood gets exposed, but the top of the feet with their veins for example may give proportionately quite good value and the arms and legs are easy to expose
______________________________________
“Babies are not actually born yellow; it develops when they are first born. Every minute we make lots of red blood cells to replace those
that have worn out. When old red blood cells are broken down, a yellow-coloured waste product, called bilirubin, is produced.
Bilirubin is insoluble in water until it is metabolised by enzymes in the liver which add sugars to the molecule to help it dissolve
meaning that it can be excreted in bile, and in urine.
However, a developing baby doesn't need this biochemical pathway for metabolising bilirubin until it is born, because the mother removes the bilirubin via the placenta. But when some babies are first born and can no longer rely on their mother to help remove bilirubin for them, particularly if they are premature or have liver problems, there can be a delay in switching on this metabolic pathway and a backlog of bilirubin builds up around the body, making the child yellow. Because , until it is metabolised, bilirubin is insoluble in water but dissolves very well in fats, it accumulates in the skin,
where we store most of our body fats, explaining why the babies appear yellow.
If it is allowed to continue for a long time, jaundice can cause permanent damage to the brain, but if the baby is put under a blue light, a photochemical reaction occurs, breaking up the bilirubin and making it water soluble. This allows the baby to excrete the excess bilirubin in its urine and bile. The process was discovered accidentally by Judith Ward who used to take babies into sunlight because she thought it was good for them. Having returned them to the hospital, she found that a previously-jaundiced baby had normally-coloured skin on sun-exposed areas, but yellow skin where the nappy
had been. As a result the method was quickly adopted for the treatment of neonatal jaundice.”
----------------------------------------------------
RED LIGHT IMPORTANT FOR ACNE PHOTOTHERAPY
i am thinking that the red light in sunlight is very important, the improvement in acne in this study is noteable
quite interesting how anything that conflicts with medical political correctness never makes the media, bunch of toads, they don't even
get paid to censor, do it naturally out of malign stupidity
i had bad acne as a teenager and what really worked was our summer sailing holidays with jumping in the salt water every morning first thing and letting it dry off so my skin was always salty, no doubt the sun was also significant, both for skin vitamin D and the direct immune stimulation of the rays on the skin
red light promotes collagen and the effect of sunlight on the skin with the compendium and the BCD is just amazing, a beautiful fullness for women
__________________
“Phototherapy with blue (415 nm) and red (660 nm) light in the treatment of acne vulgaris (Hammersmith Hospital, London)
In this study we have evaluated the use of blue light (peak at 415 nm) and a mixed blue and red light (peaks at 415 and 660 nm) in the
treatment of acne vulgaris. One hundred and seven patients with mild to moderate acne vulgaris were randomized into four treatment groups:
blue light, mixed blue and red light, cool white light and 5% benzoyl peroxide cream. Subjects in the phototherapy groups used portable
light sources and irradiation was carried out daily for 15 min.
Comparative assessment between the three light sources was made in an observer-blinded fashion, but this could not be achieved for the use
of benzoyl peroxide. Assessments were performed every 4 weeks. After 12 weeks of active treatment a mean improvement of 76% (95%
confidence interval 66–87) in inflammatory lesions was achieved by the combined blue–red light phototherapy; this was significantly
superior to that achieved by blue light (at weeks 4 and 8 but not week 12), benzoyl peroxide (at weeks 8 and 12) or white light (at
each assessment).
The final mean improvement in comedones by using blue–red light was 58% (95% confidence interval 45–71), again better
than that achieved by the other active treatments used, although the differences did not reach significant levels. We have found that
phototherapy with mixed blue–red light, probably by combining antibacterial and anti-inflammatory action, is an effective means of
treating acne vulgaris of mild to moderate severity, with no significant short-term adverse effects.”
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eileen and myself have been getting good results from clear days with dry air with lower angled sun (61°-62° optimal?, but ok down to 51°, down to 46° in a pinch? - air temperatures and wind chill are another factor in the tolerance of low sun)
whole body sun is over by 36 degrees, this low altitude sun appears to wipe out all the skin vitamin D from using my uvb lamp, tho it still gives bilirubin conjugationp>
i think since the vit d rays are not so good with the lower angled sun that supplementation of oral vit d is necessary
this supplementation may even be of advantage with sun angles of 69 degrees and above
i am favouring a gap of two days and not one between my homemade uvb lamp use and sunbathing
several successive days of sunbathing did leave me feeling a bit strung out because it is a major oxidative stress but the oral vit d
seems to have helped and in fact sorta knocked me out so i slept 4 hours straight this evening
vitamin d is one of the better things to help with sleep i have found
i am fairly sure that this lower angle sun is able to provide an anti-viral innoculating effect as well as bilirubin conjugation
when it's too cold to have whole body exposure to the sun, i just sit with my face and the veins on back of the hands and top of the feet bare to the suns rays for ten or twenty minutes to the highest alititude sun i can get and this is helpful
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this may seem a bit bizarre but the solar noon sun is now only 39 degrees at solar noon (16th of april) and getting some sun into the interior of the mouth seemed to me a good way of getting an innoculative effect, especially since the cheek tissue is blood rich and the striking blue green rays would get plenty of tissue, not being impeded by the skin
a downside might be that this tissue, having no skin or melanin protection may be more susceptible to cancer
the major downside is that the suns rays kill some of the friendly flora/biofilm in the throat making antigens that the body then uses to unbalance the throat flora - i have been getting a hoarse voice and tickly throat when i get this sun in my mouth so have stopped doing it pretty much except in the depth of winter with sun angles below 30º
it has its uses in certain circumstances and is a good example of the innoculating effect of the suns rays
its interesting that the throat flora stability is so dependent on some of the wanted bacteria and who knows what else having some stealth to hide from the bodies immune system
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THE LOWEST HEIGHT OF THE SUN FOR SUFFICIENT VITAMIN D IN COWS CREAM
the last gippsland cream which seems to have vitamin d has the expiry date of the 10th of march (early autumn in the southern hemisphere), which may place milking at about the 1st of march which i think is pretty well the last date for decent vitamin d in the cream as the 30th of march gippsland cream expiry was missing it
so looking up the sun altitude data for the 20th of feb 2007, E 146 00, S 37 30, which is a bit north of melbourne, australia
i would say 61 degrees is pretty much it for cows for a reasonable amount of vitamin D in cream
so thats aproximately the 14th of october to about the 1st of march for sufficiently vitamin d loaded cream from victoria
using E 144, S 39 50 for king island, thats the 21st of october to about the 23rd of feburary, tho king island, being an island with much clearer air than mainland australia may extend out to about early march for maintaining the vitamin d levels
using E 146 30, S 41 30 for meander valley cream, thats the 26th of october to about the 18th of feburary, possibly early march, see king island
of course high colostrum creams are much earlier and early spring creams have their own features.
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JOHN KEATS - NEGATIVE CAPABILITY AND DYING IN WINTER OF TB, ALSO VITAMIN D AND IMMUNE SYSTEM STUDY
“I had not a dispute but a disquisition with Dilke, on various
subjects; several things dovetailed in my mind, & at once it struck
me, what quality went to form a Man of Achievement especially in
literature & which Shakespeare possessed so enormously - I mean
Negative Capability, that is when man is capable of being in
uncertainties, Mysteries, doubts without any irritable reaching after
fact & reason -Coleridge, for instance, would let go by a fine isolated verisimilitude caught from the Penetralium of mystery, from being incapable of remaining content with half-knowledge. This pursued through volumes would perhaps take us no further than this, that with a great poet the sense of Beauty overcomes every other consideration, or rather obliterates all consideration. ”
so anti-american lol, those graspers after the wrong certainties
he had a horrific death from tb in rome near the end of feb and died
at the time of maximal distance from skin uvb
seems to dovetail with the study below on the lung cells converting calcidiol (25-hydroxy-vitamin D) to the hormonally active calcitriol to form anti-bacterial proteins, upregulate pathogen recognition and dampen inflammation
he might have lived had he been in sicily
a good page on the life of keats
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“In addition to contributing to calcium absorption and bone health, vitamin D is increasingly recognized for its beneficial effects on
the immune system. Vitamin D deficiency has been recently linked to increased risk of some infections, autoimmune diseases such as
multiple sclerosis and type 1 diabetes, and some cancers.
"The more scientists have been studying vitamin D, the more we learn about new roles it plays in the human body," said the study's lead
author Sif Hansdottir, M.D., fellow in internal medicine in the University of Iowa Carver College of Medicine. "The active form of
vitamin D is known to affect the expression of more than 200 genes, so we were interested both in the possible lung-specific production
of active vitamin D and in vitamin D-dependent production of proteins that fight infections."
The first step in vitamin D activation takes place in the liver, where an enzyme called 25-hydroxylase converts vitamin D into
a "storage" form. The next step takes place typically in the kidneys, but in recent years, tissue and organs such as skin, intestines,
breast and prostate have been found also to express the enzyme that completes vitamin D conversion.
The University of Iowa team, based in the laboratory of Gary Hunninghake, M.D., professor of internal medicine and the study's
senior author, used cells from deceased human donors to demonstrate that the presence of the enzyme 1 alpha-hydroxylase in the airway
cells helps convert the storage form of vitamin D into its active form.
"When we put the storage form of vitamin D on the lung airway cells, we saw them convert it to the active form. The next step was to investigate whether this active form could affect the expression of genes."
The team then showed that vitamin D activated by airway cells affects two genes involved in immune defense. One gene expresses a protein
called cathelicidin that can kill bacteria. The second gene, called CD14, produces a protein that helps cells recognize different kinds of pathogens that could be a threat.
"Vitamin D converted by the kidneys circulates in the bloodstream, but vitamin D converted by other organs appears to stay within those
organs and protect them from infection. We were able to see this happen in cells lining the trachea and main bronchi."
The team also found that when lung airway cells are infected by a virus, they express more of the enzyme that activates vitamin D.
Hansdottir said the team is very interested in pursuing studies on the role of viral infections in vitamin D production and subsequent effects on lung infections.
Vitamin D not only increases proteins involved in bacterial killing but also can dampen inflammation. Controlling inflammation through vitamin D is good because too much inflammation can cause problems such as sepsis and seems to contribute to autoimmune disease.”
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a man, lying on a sloping lawn to a 40 degree altitude sun, the veins on back of the hands and top of the feet bare to the suns rays
mouth open to the sun in the crazy belief that the suns rays will be able to innoculate some of the blood rich tissue there
yeah, i phoned up and had him carted off, no crazy fools here!