By weight, Bone is five times stronger than steel.
417
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Chewing gum boosts your brain power.
285
There are 206 bones in the human body!
-17
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
Your skeleton keeps growing until you are about 35, then you start to shrink.
74