When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
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 times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Pain travels through your body at 350 ft. per second.
36
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
In one day, adult lungs move about 10,000 litres of air.
11
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139