In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
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
Your body is creating and killing about 2.4 million red blood cells per second.
17
Your thumb is about the same size as your nose.
124