New research suggests an answer to why people yawn. July 30, 2007 — -- It can signal tiredness, boredom or even rudeness, and everyone does it. But, now, a new science may explain why people ...

It happened this past week -- a yawning gap in our knowledge filled at last. Humans do it ... chimps do it ... even educated dogs do it. We all do it: We all tend to start yawning when we see ...

Although not fully understood, yawning appears to be not only a sign of tiredness but also a much more general sign of changing conditions within the body. Studies have shown that we yawn when we ...

You expect to yawn when you’re bored or tired—not when you’re at the gym. But if you find yourself yawning between sets of deadlifts, it may be your brain’s way of cooling down your body ...

Is it true that we yawn when our brains are deprived of oxygen? Most of us can feel a yawn coming on. The muscles in our jaw ...

Scientists say they’ve found an infection more likely to strike women than men: the yawn. Many of us have felt that irresistible urge to yawn after seeing a colleague or buddy yawn. Though the ...

Yawning may help you keep a cool head—literally, a new study suggests. The findings might hold some hope for sufferers of insomnia, migraines, and even epilepsy. Though scientists have put forth ...

Humans aren't alone when it comes to yawning — all vertebrates do it too, including fish, amphibians, reptiles, birds and mammals. But why? The "evolutionarily ancient" act of yawning likely ...