Your thumb is about the same size as your nose.
124
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
