Curiosities

A growling stomach is not only about hunger. Learn what makes the rumble, why it gets louder when you are empty, and when it is worth checking.

Goosebumps evolved to trap heat and make animals look bigger, which has nothing to do with a swelling chorus. So why does music trigger the same reflex?

Purring gets read as pure contentment, but cats also purr while injured, scared, or in labor. The full picture is stranger and more useful than the simple version.

Almost everyone cringes at the sound of their own recorded voice. The reason is entirely physical, and it has nothing to do with the recording quality.

A year at age eight and a year at age forty don’t feel the same length, and there’s a real explanation for why that gap keeps growing.

Contagious yawning is one of the strangest reflexes we have, and scientists still don’t fully agree on why it happens. Here’s what the research actually shows.