After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
The human brain doesn't stop developing until about 25 years old.
102
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Your body is creating and killing about 2.4 million red blood cells per second.
17
Within three days of death, the enzymes that once digested your food begin to eat you.
22
Our Right Lungs takes more air than our left lung.
194