A team of scientists from Harvard Medical School and Duke University has created a new kind of tissue that can change heart activity using only light—no wires, no surgery, no harm. This groundbreaking ...

Good sleep hygiene calls for, among other things, a cool, dark and relaxing environment. It turns out the dark part is key to helping prevent heart disease. People who are exposed to more artificial ...

A new study led by Flinders University has found that being exposed to bright light at night can significantly increase the chances of developing serious heart problems, including heart attacks, ...

As the sun goes down, we switch on the lights indoors, from overhead to lamp lights. At the same time, bright lights from the street illuminate homes. Screens add to these lights, from television to ...