During menstruation, the sensitivity of a woman's middle finger is reduced.
47
A woman's sense of smell is most sensitive during ovulation.
34
The human sigh acts as a physiological reset button.
23
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
There are about 1,400 different species of bacteria in your belly button.
10
About half of all Americans are on a diet on any given day.
29
By the age of 60, most people have lost 50% of their taste buds.
17
The average person's skin weighs twice as much as their brain.
131