circadian

Alcohol also affects circadian rhythms — the 24-hour body clock that responds to environmental light cues in order to synchronize our sleep-wake cycle.

I built my day around my nights, transfixed by a false sense of control over my circadian rhythm.

This finding answers a long-standing question in cell biology -- how do cells integrate signals from two oscillatory processes -- the cell cycle and the circadian rhythm -- which operate a different frequencies?

It stayed the same in animals with and without gut microbiota and in tissue collected at night or during the day, suggesting that neither the microbiome nor circadian rhythms impacted the spatial landscape.

Our hormones follow a circadian rhythm, and carbs eaten earlier in the day produce a smaller blood sugar spike compared with carbs eaten later in the day.