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
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
Yawns are more contagious among people with closer relationships.
163
A person swallows approximately 295 times while eating dinner.
63
About 2/3 of American men prefer boxers to briefs.
83
About 3000 years ago, most Egyptians died by the time they were 30!
18
