In Japan, condoms are commonly sold 'door to door'!
54
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Every time you sneeze some of your brain cells die.
113
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197