For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
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 uses approximately as much energy as a 10 watt light bulb.
120
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
The human brain doesn't stop developing until about 25 years old.
102