AUSTIN (KXAN) — It’s an infection so common just about every child gets it at one point in his or her life. A strep infection in kids can usually cause a sore throat, fever, headache and fatigue but ...

We're all familiar with the idea of a sleep cycle. For people, sticking to a schedule helps our internal clock stay accurate, letting us sleep when it's time for bed, eat at mealtime and stay awake ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Giant pandas living ...

All animals have an internal clock called a circadian clock, which is regulated by cues from their environment — but animals in zoos can be exposed to very different cues from animals in the wild.

(CNN) — Giant pandas living in captivity could be suffering from “jet lag” if their body clocks don’t match their environments, scientists say. This could have a significant impact on the well-being ...