2006-08-02 23:12:01 · 8 answers · asked by JAYA k 1 in Health ➔ Diseases & Conditions ➔ Cancer
Light....like sun light???? Light from the sun helps our bodies make Vit D.
Question a little vague!!
2006-08-02 23:14:43 · answer #1 · answered by ARE YOUR NEWFS GELLIN'? 7 · 0⤊ 0⤋
It has nothing to do with enzymes, as someone else wrote.
It is because the human body needs sunlight to make Vitamin D. This is also why there are different colours of people on earth. If you ancestors (like, 5 or 10 thousand years ago, not just your grandpa...) evolved in a place with lots of sun (like Africa), the skin pigments needed to be dark (lots of melanin) to protect the skin from UV rays, but the people still got enough sun year long to make enough Vitamin D.
In Northern Europe, however, the sun is weak for much of the year. Lighter skin (less melanin) needed to evolve for people to live there. Less protection from UV, but the lighter skin allows more production of Vitamin D.
2006-08-03 06:20:52 · answer #2 · answered by P-nuts and Hair-dos 7 · 0⤊ 0⤋
1. To avoid depression. Scandinavian countries provide special sun rooms with full spectrum lighting for this purpose 2. To enable your body to synthesize vitamin D.
2006-08-03 06:19:57 · answer #3 · answered by shivaa 4 · 0⤊ 0⤋
As a source of vitamin D ofcourse. Also sunlight kills lot of germs in the evvironment. This keeps the diseases on earth under control.
2006-08-03 06:29:42 · answer #4 · answered by Keyman 3 · 0⤊ 0⤋
Vitamin D is made in skin using sunlight.
2006-08-03 06:15:38 · answer #5 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋
Sunlight helps you generate vitamin D
Light also stops you from bumping into things!
2006-08-03 06:14:48 · answer #6 · answered by Rob 2 · 0⤊ 0⤋
because the sun releases enzimes for energy in the body
2006-08-03 06:14:21 · answer #7 · answered by Brandon 2 · 0⤊ 0⤋
What's "light"?
2006-08-03 06:16:23 · answer #8 · answered by Anonymous · 0⤊ 0⤋