The familiar labels "night owl" and "early bird," long used in sleep research, don't fully capture the diversity of human ...

WASHINGTON (AP) — Being a night owl can be bad for your heart. That may sound surprising but a large study found people who ...

People who stay up late are more likely to have heart attacks and strokes than people who go to bed earlier, new research ...

In a new study, regularly delaying bedtime was connected to increased risk of heart disease, especially for women. Here’s ...

Bad news for those who love to stay up late.

So-called "night owls" may face a higher risk for heart attack and stroke, a new study published Wednesday finds.

People who are more active later in the day appear to face a higher risk of cardiovascular disease, according to a new study. Researchers explain why.

People who naturally stay up late, self-described night owls, are more likely to have poor heart health than people with a ...

Staying up late regularly may do more than disrupt sleep—it could quietly harm your heart. Studies show night owls face ...

Are you a night owl? If you’re the type of person who feels wide awake every night and tired every morning, you know how your internal circadian rhythm—also known as your chronotype—can feel out of ...

Night owls face increased heart risks. A study found those active late at night have poorer heart health. This is due to a ...