Your thumb is about the same size as your nose.
124
Obsessive nose picking is called Rhinotillexomania.
101
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Enamel is hardest substance in the human body.
61
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
The human brain doesn't stop developing until about 25 years old.
102