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
Your fingernails grow faster in summer.
744
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Mushrooms are more closely related to humans than they are to plants.
47
We share 70% of our DNA with a slug.
218
Yawns are more contagious among people with closer relationships.
163