Sun exposure, of course,  is the best method of producing vitamin D in the body. Sun exposure has also been shown to be a stronger protective factor against bladder cancer than having health insurance. Sun exposure is absolutely necessary for optimal human health. Here are some of the other well-documented health attributes of regular sun exposure:

1.  As sun exposure in the U.S. has DECREASED by 90% during the last century, melanoma incidence has INCREASED BY 3,000%.
2.  A 20-year Swedish study shows that sun avoidance is as bad for the health as cigarette smoking.
3.  A Spanish study shows that women who seek the sun have one-eleventh the hip fracture risk as those who avoid sun.
4.  Men who work outdoors have half the risk of melanoma as those who work indoors.
5.  Women who totally avoid the sun have 10-times the risk of breast cancer.
6.  Women who sunbathe regularly have half the risk of death during a 20-year period compared to those who stay indoors.
7.  Sun exposure increases nitric oxide production, which leads to a decrease in heart attack risk.
8.  Vitamin D, the sunshine vitamin, is essential to human survival, and sun exposure is the only natural way to obtain it. Sunbathing can produce 20,000 units of vitamin D in 20 minutes of whole-body exposure.
9.  Sun exposure dramatically improves mood through the production of serotonin and endorphin.
10.  Beyond vitamin D, sun exposure also stimulates the production of endorphin, nitric oxide and BDNF, all of which are vital to human health.
11.  Regular sun exposure also reduces high blood pressure, heart disease, psoriasis and multiple sclerosis (MS).
12.  As sunscreen use has increased dramatically, melanoma has increased exponentially.