posted on Feb, 27 2010 @ 06:40 PM
I haven't seen this here on ATS yet and I thought that it would be an interesting topic to bring awareness to.
Here in the States we here a lot about that Sunlight gives you cancer (well so does our food and cell phones).
On the other hand if we lived in a place like Barrow, Alaska or Iceland where there is a small amount of sunlight during the year compared to other
places in the world, we would have a high suicide rate.
Why? You ask.
Well...
Quote from
Wikipedia (it has sources)
"According to the U.S. National Institutes of Health Office of Dietary Supplements, most people in the United States can meet their vitamin D needs
through exposure to sunlight, even though a large portion have serum 25(OH)D3 levels below recommendations. Ultraviolet (UV) B radiation with a
wavelength of 290-315 nanometers penetrates uncovered skin and converts cutaneous 7-dehydrocholesterol to previtamin D3, which in turn becomes vitamin
D3. Season, geographic latitude, time of day, cloud cover, smog, skin melanin content, and sunscreen are among the factors that affect UV radiation
exposure and vitamin D synthesis. The UV energy above 42 degrees north latitude (a line approximately between the northern border of California and
Boston) is insufficient for cutaneous vitamin D synthesis from November through February; in far northern latitudes, this reduced intensity lasts for
up to 6 months. In the United States, latitudes below 34 degrees north (a line between Los Angeles and Columbia, South Carolina) allow for cutaneous
production of vitamin D throughout the year."
Vitamin D made in the skin from Pre- vitamin D3 from the sun acts as a hormone helping make and regulate Serotonin.
Source
Just wanted to bring this to attention. People with depression should soak up some UV Rays every once in a while.
Comments, welcome and appreciated.