Mental Floss

BIG QUESTIONS

Be careful!

This classic fall-time activity poses more risks than you may think, but there are things you can do to mitigate them.

Marla Mackoul








Pumpkin spice can be a mix of more than 300 flavors.

Pumpkin spice can contain more than 300 flavors—and no actual pumpkin. Here’s what’s really in the fall favorite.

April Daley








A litmus test is an idiom for a challenge. But why?

When a politician, sports team, or anyone else faces a defining challenge, it's referred to as a “litmus test.” What's litmus, and why is it being tested?

Jake Rossen








Counterintuitively, pouring water over yourself on a humid day might not cool you off.

While 100 percent humidity might seem to suggest there should be pure rain showers, there may not even be a hint of drizzle. So what does it mean to reach peak humidity?

Rebecca OConnell