It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
A hard working adult sweats up to 4 gallons per day.
39
The world's shortest man measures only 21.5 inches.
73
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
Thrity-five percent of the people who use personal ads for dating are already married.
102
Yawns are more contagious among people with closer relationships.
163
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234