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

Having different chronotypes, or being more active in the morning vs. afternoon, may play an important role in preserving muscle mass and strength, and metabolic health, according to a new study.

Bad news for those who love to stay up late.

Being a night owl can be bad for your heart. That's according to a study showing night owls had poorer overall cardiovascular ...

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

We all have nights when we stay up later than we should. But if you’re a night owl by nature, it might be doing more harm to your health than you realize. “We live in a sleep-deprived society with ...

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.

Night owls, who tend to stay up late and wake up later in the morning, reap a number of benefits and boast certain traits that are generally overlooked in our culture that celebrates early risers, ...

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

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