It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
The average person falls asleep in seven minutes.
115
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Yawns are more contagious among people with closer relationships.
163
Sociologists have found the worse the economy, the longer the women's skirts are and the better economy, the shorter the skirt.
223
Senegalese women spend an average of 17.5 hours a week just collecting water.
27