After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
On average a woman has 4 sexual partners in her lifetime.
-143
Gorillas can catch human colds and other illnesses.
205