A man's beard grows fastest when he anticipates sex.
239
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
On average a woman has 4 sexual partners in her lifetime.
-143
Your heart will pump about 212 million liters in its lifetime.
26
On average, there's 100 billion neurons in the human brain.
83
Your thumb is about the same size as your nose.
124
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Mushrooms are more closely related to humans than they are to plants.
47