Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Your thumb is about the same size as your nose.
124
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
The human brain doesn't stop developing until about 25 years old.
102
Our Right Lungs takes more air than our left lung.
194
If your DNA was stretched out it would reach to the moon 6,000 times.
256
All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).
266
Your body is creating and killing about 2.4 million red blood cells per second.
17