You can't tickle yourself.
29
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 of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26