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 ...

Northwestern Medicine scientists have discovered that light plays a key role in how animals perceive environmental threats, findings that have the potential to improve the understanding of risk ...

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 ...

Here’s what it signals—and why it makes a ton of sense.

Major depressive disorder is a debilitating condition that impacts around 5% of adults worldwide. While doctors commonly prescribe antidepressants to patients, it has several side effects and might ...

Physicists have directly tracked tiny points of darkness in laser light racing faster than light itself, without breaking ...

The bright lights of the big city might seem dazzling, but they can be hard on your heart health, a new study says. People exposed to high levels of artificial light have an increasingly higher risk ...

Many studies have proven that light exposure significantly impacts our mental health. Light can affect our mood, sleep quality and energy levels. A 2022 study revealed that light at night from a lamp, ...

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.