Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
In one day, adult lungs move about 10,000 litres of air.
11
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
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
It takes approximately 12 hours for food to entirely digest.
93
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
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