You can't tickle yourself.
29
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
It takes approximately 12 hours for food to entirely digest.
93
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.
35
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Babies crawl an average of 200m a day.
212
Your fingernails grow faster in summer.
744
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99