It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
‘Old people smell’ is actually caused by a chemical, 2-nonenal, that old people secrete through their skin
8
According to Harris Interactive, 70% of men and 57% of women shower daily.
75
Nearly 10% of American households dress their pets in Halloween costumes.
36
47% of people have a nightmare at least once a month.
186
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212