A human being loses an average of 40 to 100 strands of hair a day.
133
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Early American humans hunted car-size armadillos and used their shells for houses.
12
Mushrooms are more closely related to humans than they are to plants.
47
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, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
The human sigh acts as a physiological reset button.
23