Your body is creating and killing about 2.4 million red blood cells per second.
17
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The human sigh acts as a physiological reset button.
23
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Your thumb is about the same size as your nose.
124
