The activation and inactivation mechanisms of a key protein involved in the circadian clock system of cyanobacteria -- an important organism in the evolution of such internal clocks -- have long ...

Research into genetic mutations that affect circadian rhythms offers new insight into the rest-wake cycle and provides a new model for investigating human disease and ultimately developing medical ...

Every cell in the human body operates on an intricate internal schedule, governed by circadian rhythms that synchronize our biological processes with the 24-hour cycle of day and night. Coordinated by ...

A new study of molecular interactions central to the functioning of biological clocks explains how certain mutations can shorten clock timing, making some people extreme “morning larks” because their ...

In a pair of experimental and theoretical papers published in Nature Communications and eLife, University of Chicago scientists studied the mechanisms of two kinds of circadian “clocks” that nearly ...

It has been known for years that the brains of many organisms incorporate a "circadian clock" — a biological time-keeping mechanism that connects the body's rhythms to external light levels. The clock ...