For many people, the day begins with a cup of coffee to shake off sleepiness and feel alert. While caffeine can provide a ...

Your circadian rhythm helps regulate your natural sleep-wake cycle. Here's how to reset it to improve your sleep, according to an expert. Mercey Livingston is a health and wellness writer and ...

The copepod species Calanus finmarchicus schedules its day using a genetic clock that works independently of external stimuli. The clock shapes the copepod's metabolic rhythms and daily vertical ...

Most people don’t think much about when they poop, but the timing reveals how their gut and metabolism are working together. Our bowel movements follow a circadian rhythm, the same internal 24-hour ...

—What is the role of circadian rhythm abnormalities in sleep disturbances that are commonly observed in children and adults with ADHD? Reviewed by Nicole Foubister, MD, Assistant Clinical Professor of ...