A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Yawns are more contagious among people with closer relationships.
163
Gorillas can catch human colds and other illnesses.
205
One human hair can support 3 ounces.
191
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515