When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Mushrooms are more closely related to humans than they are to plants.
47
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
All 13 minerals necessary for human life can be found in alcohol beverages.
282
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
Gorillas can catch human colds and other illnesses.
205
The largest cell in the human body is the female egg and the smallest is the male sperm.
682