The world's shortest man measures only 21.5 inches.
73
It takes approximately 12 hours for food to entirely digest.
93
One human hair can support 3 ounces.
191
Gorillas can catch human colds and other illnesses.
205
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human brain doesn't stop developing until about 25 years old.
102