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
On average, there's 100 billion neurons in the human brain.
83
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
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Your thumb is about the same size as your nose.
124
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
Enamel is hardest substance in the human body.
61