The human brain is more active during sleep than during the day.
28
Your thumb is about the same size as your nose.
124
There are about 255 babies born worldwide every minute.
46
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
A person can live without food for about a month, but only about a week without water.
156
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human eye blinks an average of 4,200,000 times a year.
233