It takes about 20 seconds for a red blood cell to circle the whole body.
102
Men get hiccups more often than women.
93
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
On average, women have always lived longer than men.
195
Human hair and fingernails continue to grow after death.
7