When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Research has determined that most people are happiest at 7:26pm on a Saturday night.
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Your heart will pump about 212 million liters in its lifetime.
26
Our Right Lungs takes more air than our left lung.
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
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If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22