Get a link sent straight to your inbox. Remind Me We've sent this story to your inbox. Digital screens emit sleep-disrupting blue light, feed us instant and addictive entertainment and encourage ...

Researchers have found a new way to simplify the structure of high-efficiency blue organic light-emitting diodes (OLEDs), which could lead to longer-lasting and higher definition television screens.

You’ve likely heard that blue light from smartphone screens may be keeping you awake at night. While the sun is our main source of blue light, the rise of LEDs and screen use exposes us to artificial ...

A 1940s experiment put a cat on a cow and popped paper bags to show that fear blocks milk letdown. The hormone link still matters for nursing parents. A Doctor Notched His Thumbnail Every Month for 35 ...