It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
City dwellers have longer, thicker, denser nose hairs than country folks do.
48
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Just one in three consumers pays off his or her credit card bill every month.
27
A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
51
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
More redheads are born in Scotland than in any other part of the world.
85