Featured by Nicole Wetsman
Is it safe to take expired medication?
They might be okay, but you probably shouldn't.
When you get a stitch in your side, what’s really going on?
Doctors still don’t know what causes it, or how to stop it.
Will cracking my knuckles give me arthritis?
The splintering sound makes the habit seem far worse than it is.
What actually happens when you pull a muscle?
To prevent injury, make sure to stretch.
Turn any magazine into a flashlight with this optical illusion
Batteries not required.
What animal do you see in this image of a nebula?
It's a classic example of pareidolia.
Your brain won’t let you see all 12 dots in this image
Our entire visual field is not made the same.
These skulls look purple and orange. They are both red.
The pigments morph because of the Munker-White illusion.
This timeline shows just how insignificant humans are
If history’s an ocean, humanity is a raindrop.
These strawberries aren’t red. Here’s why your brain is sure they are.
Color constancy is playing tricks on you.