There’s an ongoing battle between vitamin D researchers and dermatologists about the optimal amount of sun exposure. Researchers believe that vitamin D deficiency from underexposure to the sun is a prime factor in cardiovascular disease, colon cancer, and especially osteoporosis, and that vitamin D is a natural skin anti-inflammatory.
Dermatologists argue that sun overexposure causes skin cancer. I consider sun exposure like a health food, an essential vitamin, that needs to be dosed appropriately for your skin type. Fair-skinned people need less sun exposure to get adequate vitamin D than dark-skinned people do. Again, balance is the key.
For more information about vitamin D, read “The UV Advantage” by Michael Holick.http://www.amazon.com/UV-ADVANTAGE-Michael-F-Holick/dp/1596879009/ref=sr_1_1?ie=UTF8&qid=1335194812&sr=8-1