Ever wonder what you could do if you never needed to sleep? Well, scarily enough, DARPA intends to find out. They're developing a nasal spray called Orexin-A that stimulates the neurotransmitters in our heads that make us feel well-rested. One dose feels equal to having really slept. The drug still needs many years of testing, so need to worry about the sleep-avoiding zombie apocalypse yet. Pictured: Orexin-A molecule.
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