Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The cat brain weighs about 30g.
167
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Scientists say that a 'zombie apocalypse' is actually possible based on the recent discovery of certain brain parasites. But as of now, these parasites only affect bugs.
16
The human brain uses approximately as much energy as a 10 watt light bulb.
120