By weight, Bone is five times stronger than steel.
417
The average person's skin weighs twice as much as their brain.
131
In one day, adult lungs move about 10,000 litres of air.
11
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
You forget 90% of your dreams.
256
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Pain occurs when sounds are above 130 db.
124