The human brain doesn't stop developing until about 25 years old.
102
If your DNA was stretched out it would reach to the moon 6,000 times.
256
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
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
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Enamel is hardest substance in the human body.
61
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139