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
A person can live without food for about a month, but only about a week without water.
156
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217