The human brain doesn't stop developing until about 25 years old.
102
On average, there's 100 billion neurons in the human brain.
83
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
It takes about 20 seconds for a red blood cell to circle the whole body.
102
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191