The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Your heart will pump about 212 million liters in its lifetime.
26
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
If you unfolded your brain, it would cover an ironing board.
42
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Pain occurs when sounds are above 130 db.
123
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
94
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37