Our brains have a negativity bias and will remember bad memories more than good ones.
15
It takes approximately 12 hours for food to entirely digest.
93
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
On average, there's 100 billion neurons in the human brain.
83
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93