A new large-scale study reveals that your sleep habits could be quietly impacting your heart—especially if you stay up late.

For years, the story has been simple: early risers are disciplined. Night owls are lazy. One group has its act together; the ...

Add Yahoo as a preferred source to see more of our stories on Google. While it is difficult to fundamentally change your chronotype, it does naturally shift as you age.Composite: Rita Liu/The Guardian ...

WASHINGTON — Being a night owl can be bad for your heart. That may sound surprising but a large study found people who are more active late at night — when most of the population is winding down or ...

Night owls can hoot all they want! New research suggests that people who stay up and do their best work at night have higher cognitive function than early birds, who are — let’s face it — often seen ...

Cardiovascular diseases are still the leading cause of death globally. The size of this issue ensures that research into its causes and treatments continues at pace. The latest study to investigate ...

For night owls, it can be difficult to acclimate to the 9-to-5 world, but one sleep expert has an interesting approach to help some of her U.S.-based clients who are night owls adjust to an earlier ...

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 ...