Every human spent about half an hour as a single cell.
144
The human brain is more active during sleep than during the day.
28
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
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