Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Only humans shed emotional tears.
331
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
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93