Your fingernails grow faster in summer.
744
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.
161
The average sperm cell swims at 8 inches per hour.
4
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Obsessive nose picking is called Rhinotillexomania.
101