In 2010, Dr Richard Weller, a dermatologist at the University of Edinburgh, discovered a previously unknown biological pathway by which nitric oxide is stockpiled in our skin and activated by sunlight. Since then, he has shown that exposing volunteers to the equivalent of 30 minutes of summer sunshine without sunscreen both raises nitric oxide levels and significantly reduces blood pressure. Weller's largest study, reported at the British Association of Dermatologists' annual meeting in Edinburgh in July 2018, involved tracking the blood pressure of 340,000 people in 2,000 spots around the US for three years, adjusting for variables such as age and skin type.


Period18 Mar 2019

Media contributions


Media contributions

  • TitleLet it shine
    Media name/outletThe Independent
    CountryUnited Kingdom
    PersonsRichard Weller