Roughly a quarter of the world's people live in China.
50
The average person falls asleep in seven minutes.
115
The average American spends a third of their overall time online playing games and using social networks.
298
Babies that are breastfed are more likely to be slimmer as adults than those that are not breastfed.
110
Children's sense of smell is better than adults'.
860
Over 50% of lottery players go back to work after winning the jackpot.
71
Infants spend more time dreaming than adults do.
102
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11