Most people smile when they are frustrated, according to a study.
15
Women who are romance novel readers are reported to make love 74% more often with their partners than women who do not read romance novels.
136
Two in five people in the world marry their first love.
270
A person swallows approximately 295 times while eating dinner.
63
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Every human spent about half an hour as a single cell.
144
