Scientist Explains How Some People Need Only 4 Hours of Sleep | WIRED

Researcher Ying-Hui Fu has found two rare genes that allow some people to be “natural short sleepers“ who feel rested after a mere 4 or 5 hours per night. WIRED’s Arielle Pardes sat down with Dr. Fu to discuss her findings. Still haven’t subscribed to WIRED on YouTube? ►► Get more incredible stories on science and tech with our daily newsletter: Also, check out the free WIRED channel on Roku, Apple TV, Amazon Fire TV, and Android TV. Here you can find your