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re: You should take vitamin D.
Posted on 2/4/18 at 10:02 pm to Kentucker
Posted on 2/4/18 at 10:02 pm to Kentucker
quote:You can't get it from the sun in winter unless you live in south florida. temp has to be at least in mid 80's.
Many people have deficiencies in the Winter because they're not outside enough
1
Posted on 2/6/18 at 4:29 pm to airfernando
quote:
You can't get it from the sun in winter unless you live in south florida. temp has to be at least in mid 80's.
LINK
That's incorrect. Exposure to sunlight has nothing to do with temperature. It has everything to do with the amount of skin exposed to the sun and for how long.
Light skin evolved in northern latitudes to allow weaker sunlight there to penetrate to the epidermis where vitamin D is made. In latitudes closer to the equator darker skin is necessary for blocking harmful UV rays. Those rays are less prevalent at higher latitudes so light skin wasn't harmed and could allow more sunlight in.
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