This is from the “Sunlight Institute” and this link: SUNLIGHT INSTITUTE
Could Sunlight Deficiency lead to erectile dysfunction (ED)? Could sunlight exposure or exposure to a tanning bed be as effective as Cialis?
One of the interesting findings of the literature search was the fact that sunlight stimulates vasodilation through a mechanism that has nothing to do with vitamin D. That mechanism is the production of nitric oxide (NO) by exposure to another spectrum of light, the non-vitamin-D-producing light called UVA. (NO is a well-known, potent vasodilator). Whole-body irradiation with UVA has been shown to lower blood pressure by stimulating NO production in the skin, which then significantly lowers blood pressure. These increased NO levels are accompanied by increased vasodilation and blood flow in the brachial artery.[iii] It is likely that such vasodilation may also enhance sexual function in men by increasing vasodilation and blood flow in the penile arteries, thereby reducing ED. If sunlight exposure causes vasodilation that lowers blood pressure, there is no reason to doubt that it would be a tremendous asset to men with ED. Both sunlight and tanning beds produce high quantities of UVA light. Perhaps research should be conducted to see whether Cialis or UVA exposure would cause the quickest relief of the ED condition.
One of our guests at our health resort (National Institute of Health and Fitness, http://www.nihf.com/ spent four weeks with us and sunbathed almost every day. His blood pressure decreased from 159/97 to 125/54 and leveled off at 115/70 when he returned home. I believe that the UVA light in the sunlight, and the subsequent production of NO, was greatly responsible for his blood pressure normalization. Now, I’m curious about his love life but probably won’t discuss it with him unless he volunteers!
– See more at: http://sunlightinstitute.org/could-sunlight-deficiency-lead-erectile-dysfunction-ed-could-sunlight-exposure-or-exposure-tanning#sthash.4hlBFxjl.dpuf