Matthew Walker Quotes
Based on the science, you can make somewhat clear statements: The number of people who can survive on six hours of sleep without impairment is zero.
Citations
Walker, Matthew. Why We Sleep: Unlocking the Power of Sleep and Dreams. Scribner, 2017, p. 137.
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Matthew Paul Walker is an English scientist and professor of neuroscience and psychology at the University of California, Berkeley. He is a public intellectual focused on the subject of sleep.