New medical findings suggest that people who stay up late regularly could face a significantly higher risk of serious cardiovascular problems.

WASHINGTON (AP) — 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 ...

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 ...

The study, published in the Journal of the American Heart Association on Wednesday, found that middle-aged and older adults who were more active in the evenings had poorer cardiovascular health, ...