Most biochemical reactions accelerate as temperature increases, but our daily circadian rhythms, which are underlain by gene regulatory and biochemical networks, remain constant, even as temperatures ...

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 ...

A close reading of Darwin’s work suggests a deep interest in cyclical events. Rhythmic phenomena in nature—today the subjects of the field of chronobiology—have been studied since at least the 18th ...

Are you an early bird or a night owl? The tendency to rise early or sleep late is determined by our circadian clock, which is a biological timekeeper that makes sure our bodies are adjusted to the ...

A new study suggests that stronger patterns of daily activity and rest, known as rest-activity rhythms, can strengthen ...

As anticipation builds for the longer days that follow this weekend’s switch to daylight savings time, the moment seemed ideal to turn to one of the nation’s leading circadian-rhythms researchers, UC ...

Ever wondered how your body seems to know it’s time to wake up, even before your alarm rings? That’s not luck, it’s biology. Deep within your brain, an intricate timekeeping system quietly regulates ...

Sunset on a summer's day. — Image by © Tim Sandle. Sunset on a summer's day. — Image by © Tim Sandle. As clocks spring forward for daylight saving time in the U ...