Someone across the room yawns—and before you know it, you're yawning too. It's one of the most common human experiences, yet ...

Smile dimples aren't caused by a dominant gene — a biologist explains the muscle quirk behind them, and two surprising body ...

The evolutionary trade-off that crossed humans' airway and food pathway, raising choking risk from toddlerhood to old age — ...

Why are some people particularly prone to anxiety, worry or stress, while others remain more composed? An international study ...

Skip "calm down." These phrases can defuse conflict without sacrificing your boundaries.

Yes, there is a way to gracefully address that you've been walking around with spinach in your teeth. Here are tactics to ...