Why do we yawn? Yawning is a universal gesture. Everyone yawns, from babies still in their mother's womb to the elderly.

Yawning is often associated with tiredness or boredom, but many believe it serves a purpose of increasing oxygen levels in ...

Contagious yawning is a widespread phenomenon that extends beyond merely being a sign of drowsiness; it is a behaviour interwoven with both physiological regulation and social communication. Recent ...

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 ...