When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Mushrooms are more closely related to humans than they are to plants.
47
A man's beard grows fastest when he anticipates sex.
239
Your fingernails grow faster in summer.
744
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99