The skin may respond to low-oxygen environments in a way that increases blood pressure and heart rate, according to a study in mice.

Exposing skin to sunlight may help to reduce blood pressure, cut the risk of heart attack and stroke - and even prolong life, a study suggests. Researchers have shown that when our skin is exposed to the sun's rays, a compound is released in our blood vessels that helps lower blood pressure...

Scientists at the UnIversity of Edinburgh in the UK suggest that the heart-health benefits of sun exposure may outweigh the risk of developing skin cancer. In the landmark study, the researchers found that when sunlight touches our skin, a compound called nitric oxide that helps lower blood pressure, is released into our blood vessels...