Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
One human hair can support 3 ounces.
191
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The human sigh acts as a physiological reset button.
23
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
A man's beard grows fastest when he anticipates sex.
239