August 15, 2008 at 1:12 am #28862
SUN EXPOSURE SAVES TEN TIMES AS MANY LIVES VIA VITAMIN D THAN DIE FROM SKIN
By David Gutierrez
Friday, August 08, 2008
The number of lives saved by people doubling their sun exposure might be 10
times higher than the number of fatal skin cancers that would result,
according to a study conducted by researchers at the Institute for Cancer
Research in Oslo, Norway, and published in the Proceedings of the National
Academy of Sciences.
Exposure to the ultraviolet radiation from sunlight increases the risk of
developing skin cancer, but also increases the body’s production of vitamin
D. The connection between vitamin D and bone health is well-known, and
recent research suggests that a higher vitamin D intake might also provide
protection against certain cancers, diabetes and multiple sclerosis. Vitamin
D is also believed to help with the proper functioning of the immune system.
“The skin cancer risk is there, but the health benefits from some sun
exposure are far larger than the risk,” said lead researcher Johan Moan.
“What we find is modest sun exposure gives enormous vitamin D benefits.”
Vitamin D deficiency is a particular problem at northern latitudes, where
the sun is weaker, particularly during the winter. Researchers calculated
that in response to the same amount of time spent outdoors, Australians
living just south of the equator produce 3.4 times more vitamin D than
people living in Britain and 4.8 times more than people living in
According to Moan, if the general population of Norway doubled the amount of
time spent in the sun, approximately 300 more people would die each year
from skin cancer, representing twice the current death rate. At the same
time, there would be 3,000 fewer deaths from other types of cancer.
“The current data provide a further indication of the beneficial role of
sun-induced vitamin D for cancer prognosis,” said researcher Richard Setlow,
from the U.S. Department of Energy’s Brookhaven National Laboratory.
Moan recommends that people spend half as much time in the sun each day as
it would take them to develop a sunburn.
Recommended resource: The Healing Power of Sunlight and Vitamin D, featuring
an exclusive interview with Dr. Michael Holick.August 17, 2008 at 11:30 pm #28863
I read something about how people with darker skin need to spend more time in the sun than people with lighter skin because the darker pigment makes it take longer to absorb the same amounts of vitamin d, and that when people moved further away from the equator their skin became lighter so they could absorb the vitamin more easily as an evolutionary thing because they have less sun exposure (or futher distance from the sun..or something..lol) further away from the equator. The book I read that in was The New Becoming Vegetarian, hopefully I didn’t misrepresent what they presented. That book has a lot of interesting information on vitamins, including that when men ejaculate they lose a considerable amount of zinc. I’ve been meaning to write a post about that but the book is packed away for right now so it might be a week or two before I do.August 18, 2008 at 8:50 pm #28865
Interesting – thanks for digging this up. I had heard the theory but didn’t know where it originated. Sunspots are 2 million degrees hotter than the sun itself, so a sign of excess yang…..
michaelAugust 19, 2008 at 12:18 am #28867
It appears that when you have a sunspot, the sunspot itself is “cooler”
than the sun’s average temperature.
However, strangely enough, the BOUNDARY of the sunspot becomes hotter
than the sun’s average temperature, and this effect dominates. This
then creates more overall solar radiation, so that when you have
more sunspots you get more solar radiation.
Strange, very strange.
StevenAugust 19, 2008 at 7:44 pm #28869
Herd an interesting theory that the sun is not actualy hot, in just stimulates things into being hot. It made me thing of releasing true yang stored in yin. But I am no scientist. Just thought I pass that one along.August 19, 2008 at 9:58 pm #28871
I had another thought on ths fun theory, that maybe it is the musci of the sun that gets things to dance, thus producing heat.August 19, 2008 at 10:57 pm #28873
You could argue that to be true for *any* heat source.
Any source of heat–including the sun–is really just a
All “heat sources” emit what is called “electromagnetic radiation”
It includes light.
It includes higher frequency stuff like UV, X-rays, gamma rays.
It includes lower frequency stuff like infrared, microwave, radio waves.
All of these get emitted to some degree–depending on the object emitting.
It’s the reason coils on a stove or oven get red.
When the portion relating to the deep infrared and microwaves come into
contact with other objects (i.e. you), they match the natural resonance
of the molecules and cause them to vibrate faster.
The observance of “temperature” is just the sensation experienced by faster
vibration of molecules.
There are only two differences between the sun and the inside of an oven.
One is that the sun is MUCH MUCH more intense, and the other is the
source of the radiation–an oven source is by electrical friction, and
the sun’s source is nuclear fusion.
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