Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Yawns are more contagious among people with closer relationships.
163
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
One human hair can support 3 ounces.
191
By weight, Bone is five times stronger than steel.
417
Obsessive nose picking is called Rhinotillexomania.
101