People exposed to high levels of artificial light have an increasingly higher risk of heart disease, Massachusetts General Hospital researchers reported. File Photo by John Angelillo/UPI The bright ...

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 ...

Turning off the lights at night has long been known to support restful sleep, but new research suggests it may have another significant benefit. Sleeping in total darkness may lower the risk for ...

In a key advance toward wireless, minimally invasive temporary pacemakers, researchers have made a thin silicon device that lays flat on the heart’s surface and regulates heartbeat using light (Nature ...

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 ...