Everyone has to sleep sometime, no matter what. Despite all of our differences, every single person in the world can agree that sleeping is both important and awesome. There's nothing better than ...

Yawning more when tired may be linked to cooling the brain, regulating oxygen, and social bonding, all of which help combat fatigue and improve alertness.

In order to figure out why it is that we yawn, scientists like to look at what exactly a yawn is. Well, physically, a yawn is an involuntary deep breath that's drawn from the belly and causes us ...

When you fail to get a good night’s sleep of at least seven hours, you increase your likelihood of several conditions, including diabetes, depression, hypertension, obesity and even stroke.

But why do you yawn when you're not sleepy? Despite what you may have heard, yawning has nothing to do with increasing the body's oxygen supply. In experiments, subjects yawn just as much in ...

You know the feeling. It’s getting close to bedtime, you get sleepy, and you start yawning automatically. You may even find yourself yawning in the middle of the day in a mid-day lull. These ...

Although excessive yawning is usually attributed to being sleepy or bored, it may be a symptom of an underlying medical problem. Learn about the possible causes and treatments.

Here’s the science behind why you may be yawning during workouts, and what to do about it if you want the yawns to stop.

Discover how contagious yawning reveals your true emotional connections and why you mirror some people's yawns but not others.

A GP explains the main reasons why we yawn – including the factors that can lead to excessive yawning (apart from tiredness).