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 financially stable men prefer smaller breasts.
16
90 percent of women who walk into a department store immediately turn to the right.
134
2% of Europeans lack the genes for smelly armpits.
6
More boys than girls are born during the day; more girls are born at night.
120
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
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
Intelligent people have more zinc and copper in their hair.
233