There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
We share 70% of our DNA with a slug.
218
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
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
On average a woman has 4 sexual partners in her lifetime.
-143
The human brain uses approximately as much energy as a 10 watt light bulb.
120