Yawns are more contagious among people with closer relationships.
163
Mushrooms are more closely related to humans than they are to plants.
47
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
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
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The average person's skin weighs twice as much as their brain.
131
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