When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
The human brain has the capacity to store everything that you experience.
4k
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Human hair and fingernails continue to grow after death.
7
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31