Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
The human body contains over a billion miles of DNA.
147
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Only humans shed emotional tears.
331
You forget 90% of your dreams.
256
On average, there's 100 billion neurons in the human brain.
83
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human brain is more active during sleep than during the day.
28