Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Only humans shed emotional tears.
331
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Yawns are more contagious among people with closer relationships.
163
Obsessive nose picking is called Rhinotillexomania.
101
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
The largest cell in the human body is the female egg and the smallest is the male sperm.
682