Add Yahoo as a preferred source to see more of our stories on Google. Avoiding light at night and seeking light during the day may be a simple and effective way to improve mental health. (Getty Images ...

States with an overexposure to artificial light pollution—particularly at night—are linked to an increased risk of Alzheimer's disease, according to a new study by scientists at Rush University ...

Physicists have directly tracked tiny points of darkness in laser light racing faster than light itself, without breaking Einstein’s rules. The new measurements show that these “dark points” in a ...

Exposure to outdoor artificial light at night could be linked to the onset of age-related macular degeneration, a chronic condition that is a leading source of irreversible blindness, South Korean ...

Human bodies are not entirely dark. A growing body of research suggests that every living person emits an ultra‑faint glow, a stream of tiny photons that persists through life and appears to vanish at ...

Scientists experimentally confirmed what we’ve known to be true for half a century—darkness can “travel” faster than light.

Researchers at Rice University have identified why a widely studied organic semiconductor behaves unpredictably ...

Exposure to outdoor light at night could put people at a higher risk of developing Alzheimer’s disease (AD), according to a new study published in Frontiers in Neuroscience. "We show that, in the U.S.