You know the feeling. It’s getting close to bedtime, you get sleepy, and you start yawning automatically. You may even find yourself yawning in the middle of the day in a mid-day lull. These yawns ...

Seeing or hearing someone yawn can make you yawn. This phenomenon is not limited to humans; some animals experience contagious yawning, too. But why is yawning contagious? Brain cells called mirror ...

Why are people judged negatively for walking faster or slower than the pedestrians around them? Why is creativity viewed as sexier than intelligence? Why do dads joke about harming boys who have a ...