The above link is and excellent presentation of the facts behind the power of daily exposure to our sun.
Some details include:
Johns Hopkins University Medical School conducted a ten-year epidemiological study that showed exposure to full-spectrum light (including the ultraviolet frequencies) is positively related to the prevention of breast, colon and rectal cancers.
Vitamin D3 isn’t exactly a vitamin, but rather a type of steroid hormone that can drastically improve your immune system function.
Dr. Richard Hobday, author of The Healing Sun, says our fear of the sun does more harm than good. Most recommended daily sunscreens block ultraviolet B rays, the same rays that trigger the production of vitamin D. The number of people who die from breast cancer, colon cancer, prostate cancer, ovarian cancer, heart disease,multiple sclerosis and osteoporosis — all maladies that sunlight could benefit — is far greater than the number of deaths from skin cancer.
I recommend everyone study this article and print a copy for their medical doctor!