100 Random Facts that will make you smarter

Cherries can cause cancer cells to kill themselves.

Cracking knuckles does not hurt your bones or cause arthritis, the sound you hear is gas bubbles bursting.

Shark pregnancies last up to 4 years.

A full moon is nine times brighter than a half moon.

Smiling actually boosts your immune system.

Dogs and elephants are the only animals that understand pointing.

The main exporter of Brazil nuts is not Brazil. It’s Bolivia.

At rest, your brain one fifth of a calorie per minute.

A single tree can absorb more than 10 pounds of CO2 each year.

Amazon River once flowed in the opposite direction, from east to west.