The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Pain occurs when sounds are above 130 db.
124
The average person's skin weighs twice as much as their brain.
131
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
In one day, adult lungs move about 10,000 litres of air.
11
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93