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Humans could learn to hibernate like our ancestors in a bid to revolutionise surgery and even establish better space travel, according to experts.

Hibernation means more than just a nice long sleep. As NASA looks to longer interplanetary and perhaps one day interstellar voyages, being able to sleep through months or even years of deep space travel would not only cut down on boredom, it would be a great way to conserve resources.

And according to Kelly Drew, a scientist at the University of Alaska’s Institute of Arctic Biology, it's "very possible that humans could hibernate" in the near future – which could be a very useful option.

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