Find yourself yawning a lot? Do you need that third or fourth cup of coffee to make it through the afternoon at work? Such signs of sleepiness may be a red flag of a serious sleep deficit that could ...

After a hearty lunch at work, you and your co-workers go into a meeting. First one colleague starts to yawn, then a second and finally it's your turn. Many biological explanations have been put ...

Yawning reverses cerebrospinal fluid flow, boosts brain blood surge, and may aid cooling and waste movement, challenging the idea that it signals boredom alone.

Contagious yawning refers to the tendency of individuals to yawn after seeing, hearing, or even thinking about someone else yawning. About 40% to 60% of people exhibit contagious yawning when exposed ...

Here's a challenge: Try to read this whole page without yawning. Even reading the word yawn might be enough to set you off. But why do we yawn in the first place? And why do we 'catch' other peoples'?