You can't tickle yourself.
29
Pain occurs when sounds are above 130 db.
124
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
It takes approximately 12 hours for food to entirely digest.
93
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
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
A man's beard grows fastest when he anticipates sex.
239
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11