The Aztecs were the first to serve chocolate as a drink. They also mixed it with hot chili pepper to make it really 'hot'.
13
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
21
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A dairy cow can produce more milk when listening to music.
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