Tweaking the numbers of receptors in a key brain area changes the daily rhythms of rest and wake in mice. In humans and other animals, signals from a central circadian clock in the brain generate the ...

Until now, the specific neurobiology of how our circadian clocks keep track of the seasons has been a mystery. Recently, researchers led by Toru Takumi at the RIKEN Brain Science Institute in Japan ...

Scientists are uncovering the far-reaching influence of physical activity on our circadian rhythms. They believe the emerging findings have implications both for health and athletic performance. When ...

As the clocks go back this weekend, maybe it isn’t just the hour change we need to rethink, writes Dr Catherine Conlon.

Your body’s internal clock isn’t just about feeling sleepy – it’s orchestrating a complex hormonal ballet that affects everything from your mood to your metabolism. We often think about sleep as ...

While most organisms have biological clocks synchronized with the day-night cycle (circadian rhythms), marine animals in tidal areas have also developed circatidal rhythms to align with the tidal ...

Circadian rhythms regulate the sleep-wake cycle, hormone secretion, metabolism, immune responses, and even patterns of eating and digestion. They help preserve genomic stability, control the cell ...

Research highlights the hepatic vagal nerve’s role in regulating food intake rhythms, offering new insights for potential anti-obesity treatments. Study: Hepatic Vagal Afferents Convey Clock-Dependent ...

On the one hand, circadian rhythm disorder contributes to tumor growth and metastasis by influencing the dysregulation of gene expression affecting the tumor itself. On the other hand, circadian ...

A study in mice suggests that the “glymphatic system,” which removes the brain’s toxic waste during sleep, may not operate efficiently in shift workers who sleep during the day. This may explain their ...