Working the night shift, frequently flying across time zones or keeping an irregular sleep schedule does more than just leave ...

What Is Circadian Rhythm?Circadian rhythm is your body’s natural, internal 24-hour cycle that determines when you sleep and ...

Circadian rhythm, a natural cycle that regulates many biological processes, operates on a 24-hour cycle. Changes in light and dark significantly impact circadian cycles, and abnormalities can disrupt ...

The brain's ability to clear a protein closely linked to Alzheimer's disease is tied to our circadian cycle, according to research published today in PLOS Genetics. The research underscores the ...

Studies by scientists at Rensselaer Polytechnic Institute have found that the brain’s ability to clear a protein that builds up in the brains of patients with Alzheimer’s disease (AD) is tied to our ...

Giving drugs at different times of day could significantly affect how they are metabolized in the liver, according to a new study from MIT. Using tiny, engineered livers derived from cells from human ...

Researchers have advanced our understanding of the circadian clock, the biological cycle that synchronizes with light-dark exposure. They recently developed a method to study how the circadian clock ...

The rising and setting of the sun influences the function of every cell in our bodies. Almost every organism on earth—from single-cell algae to humans—has an internal circadian clock which is a ...

Everyone knows morning people and late-night owls. The variation in individual circadian rhythms is an anecdotal as well as experimentally verified fact. But, until now, to systematically study ...

The inner-workings of the "circadian clock" are complex. The molecular processes behind it have eluded scientists until now. Two new studies from June 2013 have uncovered specific proteins that drive ...