People with blue eyes are better able to see in the dark.
153
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
You can only remember 4 things at a time.
31
Babies cry but they don't produce tears until one to three months after birth.
238
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
Most people smile when they are frustrated, according to a study.
15