The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
The human body contains over a billion miles of DNA.
147
Yawns are more contagious among people with closer relationships.
163
It takes approximately 12 hours for food to entirely digest.
93
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191