Natural Health News – Exposing the skin to sunlight can help reduce blood pressure and therefore cut the risk of heart attack and stroke, a new study suggests.
Research conducted by British researchers at the Universities of Southampton and Edinburgh shows that sunlight alters the levels of small messenger molecule, nitric oxide (NO) in the skin and blood, lowers blood pressure.
Martin Feelisch, Professor of Experimental Medicine and Integrative Biology, University of Southampton, and the principal investigator, comments: “NO, together with its degradation products are known to be abundant in the skin, is involved . in regulating blood pressure When exposed to sunlight, small amounts of NO are transferred from the skin to the circulation, decreasing the tone of blood vessels, as low blood pressure, so does the risk of heart attack and stroke. ”
While it is widely recommended to limit sun exposure to prevent skin cancer, the study authors suggest that minimize exposure can put some disadvantaged increasing the risk of prevalent diseases related diseases cardiovascular.
Cardiovascular disease, often associated with high blood pressure, accounts for 30% of deaths worldwide each year. Blood pressure and cardiovascular disease are known to vary according to season and latitude, with higher levels observed in winter and countries farther from Ecuador, where ultraviolet radiation from the sun is lower.
Sun exposure releases natural substances to reduce BP
During the study, which was published in abstract form in Journal of Investigative Dermatology , the skin of 24 healthy individuals was exposed to ultraviolet (UV) tanning lamps for two sessions of 20 minutes each. In one session, volunteers were exposed to both UVA and heat lamps. In another, UV rays were blocked so that only the heat from the lamps affected skin.
The results suggest that UVA exposure dilates blood vessels, lowers blood pressure significantly, and alters the levels of NO metabolites in the circulation, without changing the levels of vitamin D. Other experiments indicate that shops NO preformed in the upper layers of skin are involved in mediating these effects. The data are consistent with the seasonal variation in blood pressure and cardiovascular risk in temperate latitudes.
Professor Feelisch adds. “These results are significant to the ongoing debate about the possible health benefits of sunlight and the role of vitamin D in this process can be an opportune time to reassess risks and benefits of sunlight for human health and to give a new look to the current board of public health. Avoid excessive sun exposure is key to preventing skin cancer, but is not exposed to it at all, out of fear or as a result of a certain lifestyle, it could increase the risk of cardiovascular disease. Perhaps with the exception of bone health, the effects of vitamin D supplementation orally have been disappointing.
“we believe that no skin is a major contributor so far is overlooked for cardiovascular health.”