Nearly 80 percent of all sudden cardiac arrests happen at home.
7
It takes about 20 seconds for a red blood cell to circle the whole body.
102
In one day, adult lungs move about 10,000 litres of air.
11
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Most lipstick contains fish scales.
37
When you take a step, you are using up to 200 muscles.
885
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Every hour one billion cells in the body must be replaced.
17