Nelson Vergel
Founder, ExcelMale.com
Research carried out at the Universities of Southampton and Edinburgh shows that sunlight alters levels of the small messenger molecule, nitric oxide (NO) in the skin and blood, reducing blood pressure.
Nitric oxide has been found to be important for the dilation of blood vessels needed to decrease blood pressure and improve penile blood flow. The skin is a mayor storage of nitric oxide.
"During the study, the skin of 24 healthy individuals was exposed to ultraviolet (UVA) light from tanning lamps for two sessions of 20 minutes each. In one session, the volunteers were exposed to both the UVA rays and the heat of the lamps. In another, the UV rays were blocked so that only the heat of the lamps affected the skin.
The results suggest that UVA exposure dilates blood vessels, significantly lowers blood pressure, and alters NO metabolite levels in the circulation, without changing vitamin D levels. Further experiments indicate that pre-formed stores of NO in the upper skin layers are involved in mediating these effects. "
Source
We have discussed on ExcelMale.com the role of nitric oxide and how to improve it for better erections: Gene's Nitric Oxide Stack