Adults with a definite evening chronotype have significantly poorer cardiovascular health than those with intermediate sleep patterns.

You wake up at the crack of dawn and power through mornings at work. By the afternoon, though, you’re crashing. Compare that to your work wife, who struggles to keep her eyes open all morning but ...

Most people acknowledge that there are two types of sleepers in the world—early birds and night owls—but research has shown that there are actually four or more sleep-wake cycles. The time you ...

By Dr. Liji Thomas, MD People who stay up late may face higher cardiovascular risk. However, this large UK study shows that ...

It doesn't mean staying up and waking up late is inherently unhealthy.

Researchers have identified five subtypes of the "early bird" and "night owl" sleep–wake patterns, each associated with ...

Early to rise makes a person healthy and wise? Not necessarily. Depending on how your body clock is wired, the opposite may be true! Every person's body is set to follow daily patterns, including one ...

If you feel more sluggish during certain times of the day, it could be due to your sleep chronotype. The chronotype affects the body’s natural tendency to be asleep or awake, according to the Sleep ...

Emerging evidence suggests that "night owls" are more likely to have poor heart health and a higher risk of heart attack or ...