Adults with a natural preference for nighttime activity may be at a greater risk for behaviors and health factors linked to cardiovascular disease, a new study shows.

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 ...

So-called “night owls” my faces a higher risk for heart attack and stroke, a new study published Wednesday finds.