The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
The human brain is more active during sleep than during the day.
28
The average person's skin weighs twice as much as their brain.
131
Déjà vu occurs when your brain tries to apply a memory of a past situation to your current one, fails, and makes you feel like it's happened.
12
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The human brain doesn't stop developing until about 25 years old.
102
Starfish don't have brains.
132