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

Researchers say being a night owl itself isn't the problem, it's risk factors they tend to have, like smoking and not getting ...

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.

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

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, ...

A large study found people who are more active late at night — when most of the population is winding down or already asleep — have poorer overall heart health than the average person.

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