The average human body contains enough iron to make a small nail.
50
The human sigh acts as a physiological reset button.
23
Laughing could dramatically improve your health – and be as good for you as a deep state of meditation, researchers have found.
28
Deep Breathing gives you health benefits similar to aerobics.
39
The average sperm cell swims at 8 inches per hour.
76
About half of all Americans are on a diet on any given day.
29
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Your heart will pump about 212 million liters in its lifetime.
26