A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Your thumb is about the same size as your nose.
124
One human hair can support 3 ounces.
191
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Pain occurs when sounds are above 130 db.
124
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Enamel is hardest substance in the human body.
61
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118