If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Your thumb is about the same size as your nose.
124
The human brain doesn't stop developing until about 25 years old.
102
If your DNA was stretched out it would reach to the moon 6,000 times.
256
The average person's skin weighs twice as much as their brain.
131
Our Right Lungs takes more air than our left lung.
194
Enamel is hardest substance in the human body.
61
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