In one day, adult lungs move about 10,000 litres of air.
11
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
A man's beard grows fastest when he anticipates sex.
239
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Your fingernails grow faster in summer.
744