It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12