The average person's skin weighs twice as much as their brain.
131
Yawns are more contagious among people with closer relationships.
163
Your body is creating and killing about 2.4 million red blood cells per second.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Enamel is hardest substance in the human body.
61
Our Right Lungs takes more air than our left lung.
194
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193