Higher nighttime light exposure is associated with increased light sleep duration, with complex effects on deep sleep duration. New research reveals how outdoor nighttime light exposure subtly impacts ...

Is deep sleep better than light sleep, even if it's shorter? Experts break it all down. FG Trade via Getty Images We’ve all been there: Maybe you were frantically packing for a trip and only got a few ...

Light sleep makes up a significant portion of our rest but the term might cause alarm in some if they think they’re getting too much “light sleep” and not enough “deep sleep.” Sleep trackers label it ...

Bright light might be the solution to getting a good night's sleep, researchers have found. Exposure to bright light has been previously found to help treat symptoms of depression, and this might be ...

Smartwatch makers promise to turn your wrist into a sleep lab, translating tiny movements and heart rate blips into colorful ...

Blue light has acquired a dubious reputation in recent years, frequently blamed for everything from disrupted sleep patterns to digital eye strain. This high-energy light, emitted abundantly by our ...

People who lived in areas of China with high light pollution at night were about 28% more likely to develop diabetes than people who lived in the least polluted areas, according to the study published ...

For anyone who cares about their so-called "sleep hygiene" — essentially good, deep, restful sleep — it has become conventional wisdom that blue light will wreck it. Blue light is often the wavelength ...

For an experience that commands a quarter to a third of our lives, surprisingly little is known about how our bodies and brains sense the need to sleep, then automatically adjust and discharge that ...

Whether you’re spending the night in the comfort of your own home, a hotel or a loved one’s residence, a sleep mask can help minimize light, a well-known disruptor of deep rest, and promote better ...

BOSTON — At approximately midnight, three hours in to his semi-regular commute from Boston to Madrid, Dr. Alen Juginovic pulls an essential item from his carry-on luggage. For approximately 30 minutes ...