It takes approximately 12 hours for food to entirely digest.
93
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Pain occurs when sounds are above 130 db.
124
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Our brains have a negativity bias and will remember bad memories more than good ones.
15
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22