The human body contains over a billion miles of DNA.
147
The tongue is the strongest muscle in the human body.
50
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
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
