How do UV rays help blood flow? Here's a terrific and entertaining Ted Talk on the subject. Happy summer solstice!


Richard Weller: Could the sun be good for your heart? | Video on TED.com
www.ted.com
Our bodies get Vitamin D from the sun, but as dermatologist Richard Weller suggests, sunlight may confer another surprising benefit too. New research by his team shows that nitric oxide, a chemical transmitter stored in huge reserves in the skin, can be released by UV light, to great benefit for blo...