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
By weight, Bone is five times stronger than steel.
417
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
The average sperm cell swims at 8 inches per hour.
4
Your heart will pump about 212 million liters in its lifetime.
26
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
30