Sleeping fewer hours than experts recommend had no negative effects on brain and cognition in large scale long term study. https://academic.oup.com/sleep/advance-article/doi/10.1093/sleep/zsz290/5697049 …pic.twitter.com/q6MzaAcoke
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That book is demonstrably riddled with errors and grand misinformation, a very bad case. https://statmodeling.stat.columbia.edu/2019/12/27/why-we-sleep-data-manipulation-a-smoking-gun/ … https://statmodeling.stat.columbia.edu/2019/11/18/is-matthew-walkers-why-we-sleep-riddled-with-scientific-and-factual-errors/ … https://statmodeling.stat.columbia.edu/2019/11/24/why-we-sleep-update-some-thoughts-while-we-wait-for-matthew-walker-to-respond-to-alexey-guzeys-criticisms/ … https://statmodeling.stat.columbia.edu/2019/12/26/whassup-with-why-we-sleep/ …