Researchers at Ludwig Maximilian University of Munich found that moderate alcohol consumption transiently raises nocturnal ...

In this Healio Video Perspective from the ASCRS meeting, William B. Trattler, MD, shares data on the efficacy of ...

The predawn hours of April 28 will see a planetary triangle form in the night sky, as Venus makes a close approach to Saturn following a conjunction, while Neptune, invisible to the naked eye, will ...

Topography-guided laser vision correction offers several benefits: It is not dependent on pupil size, can be measured ...

REM sleep goes even deeper into brain recovery, dreaming and processing memories and emotions. This is the sleep stage in ...

Allergies may feel worse at night because of nearby allergens and their effect on circadian rhythm. Find out how to stop ...

A good night’s sleep isn’t just about the number of hours you log. Getting quality sleep — the kind that leaves you feeling ...

Night vision relies on a type of photoreceptor in your eye called a rod, while cones (a different kind of photoreceptor) ...