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 reasons ...

Italian scientists who documented humans interacting in everyday situations have found that women are more susceptible to catching the urge to yawn from others than men are. The findings, published in ...

When 36-year-old Hayley Black from the UK woke up one morning to feed her newborn, she never imagined a simple reflex would turn into a nightmare. Mimicking her baby Amelia’s yawn, Hayley stretched, ...

Since yawning can prompt alertness, the idea is that we perhaps evolved to use one another as indicators of when we ourselves should yawn to trigger a more vigilant brain.

Humans’ first experience with yawning happens in utero, says Matthew D. Epstein, M.D., associate medical director of the Atlantic Health Sleep Centers in New Jersey. Yet, Earth-side, the ...