It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The human brain doesn't stop developing until about 25 years old.
102