Women buy four out of every 10 condoms sold.
71
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Fidgeting can burn about 350 calories a day.
201
Human hair and fingernails continue to grow after death.
7
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
One quarter of the bones in your body are in your feet!
36
From the age of thirty, humans gradually begin to shrink in size.
1