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
Our brains have a negativity bias and will remember bad memories more than good ones.
15
A man's beard grows fastest when he anticipates sex.
239
The human brain is more active during sleep than during the day.
28
Your heart will pump about 212 million liters in its lifetime.
26
A human being loses an average of 40 to 100 strands of hair a day.
133
Your thumb is about the same size as your nose.
124