Obsessive nose picking is called Rhinotillexomania.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
You can't tickle yourself.
29
The average person's skin weighs twice as much as their brain.
131
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
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