WE all have our theories about why we yawn – boredom, the brain getting oxygen, or the most obvious one, lack of sleep. There ...

Yawning is often seen as a simple sign of fatigue or boredom. However, this natural and universal reflex could reveal much more about your hormonal health—particularly your levels of cortisol ...

Experts discuss the mysteries of yawning at first ever international conference. —LONDON, June 28, 2010 -- For two days last week, they came to Paris. Over two dozen experts in the field of ...

Humans aren't alone when it comes to yawning — all vertebrates do it. But why? An expert explains the likely reason behind this "evolutionarily ancient" act.

Sleepiness is often written off as a byproduct of today’s always-on society, but it can have serious health consequences, experts say.

Key points Contagious yawning may reflect empathy and nonconscious mimicry in social animals. The mirror neuron system is linked to contagious yawning, empathy, and social behaviors. Contagious ...

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

In most common occupations women still make less than men doing the same job for an equal amount of hours, according to new data released on Tuesday.

Key points Contagious yawning may reflect empathy and nonconscious mimicry in social animals. The mirror neuron system is linked to contagious yawning, empathy, and social behaviors. Contagious ...