Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The average person will go on a date at least 100 times before they finally marry.
33
The human brain is more active during sleep than during the day.
28
In one day, adult lungs move about 10,000 litres of air.
11
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
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23