The earliest known account of a circadian cycle dates back to the fourth century B.C. when a Greek scholar, Theophrastus, wrote about a tree whose leaves closed at night and opened in the morning.

"These findings are novel." Experts issue warning after uncovering surprising link to heart disease: 'A public health concern ...

Milliseconds of variability, now detected by fitness watches, can improve well-being Earlier this year I got an Oura ring to ...

At the Mayo Clinic, cardiologists Peter Noseworthy, M.D., and John Giudicessi, M.D., Ph.D., are uncovering the earliest signs ...

To live is to have a heartbeat, which is why it makes sense for us living things to have a good understanding of our ticker. It’s well-known science that our hearts beat faster when we exercise and ...

Deep breathing exercises can physiologically calm the body by lowering heart rate, releasing muscle tension and changing skin ...

It’s unclear why drinking coffee was linked with a lower risk of irregular heartbeat recurrence. It’s possible that an ...

Disruptions to the body's internal clock are strongly associated with increased risk of obesity, diabetes, high blood ...

(NEXSTAR) – Country star Luke Bryan opened up about the 2007 death of his sister in a recent podcast appearance, calling the circumstances surrounding her sudden passing “tragic beyond words.” “I’ve ...

Disruptions to your circadian rhythm (your body’s internal clock) are tied to higher risk of obesity, type 2 diabetes, high blood pressure, and cardiovascular disease, according to a new scientific ...

The American Heart Association released a study Oct. 28 that found disruptions to people’s circadian rhythm can increase their risk of cardiovascular disease and other conditions such as obesity, Type ...

Cardiovascular and metabolic health are influenced by the circadian system, which regulates 24-hour rhythms across numerous physiologic processes. Disruptions to circadian rhythmicity can adversely ...