Under constant darkness, Drosophila’s ability to form lasting memories is impaired.

As global temperatures rise and winters shorten, caterpillars of the corn borer moth are emerging earlier in parts of the US thanks to changes in two genes, researchers find.

Habits such as napping might influence how humans cope with extreme environments, such as those at a polar research facility in winter.

Circadian rhythms heavily influence how our bodies use energy, a small study suggests.

Timekeepers in muscle help mediate metabolism, and may influence neurological processes such as sleep.

Just 20 years ago, scientists didn’t even realize muscles had their own circadian clocks. Now they are beginning to appreciate their importance in health. 

Even in mice with a busted circadian clock and an unhealthy diet, carefully timed feeding overcomes the rodents’ predispositions for metabolic diseases.

In Drosophila, the tissue is more permeable to drugs at night, offering a possible explanation for why some medicines work better at certain times of day.

Researchers identify patterns of neural activity ranging from a few days to four weeks in individuals with epilepsy.