One quarter of the human brain is used to control the eyes.
43
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Your heart beats over 100,000 times a day!
54
The human heart creates enough pressure to squirt blood 30 ft.
37
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
In one day, adult lungs move about 10,000 litres of air.
11