Matt Walker

@sleepdiplomat

Professor of Neuroscience at UC Berkeley Author: Why We Sleep

California, USA
sleepdiplomat.com
Joined October 2015
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  1. Feb 15

    Simply associational, but older adults who slept 5hr a night or less were twice as likely to develop dementia across 5 years vs. those who slept 7-8hr. Snoring also a key player. I hope we can better address age-related sleep impairment in the clinic...

    27 replies 118 retweets 554 likes
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  2. Feb 9

    Delaying school start times by 1hr = 1) more sleep, 2) better attendance, and 3) superior academic performance. Conclusion: "A delay in school start time should be seriously considered to improve sleep and academic achievements of students." Quite.

    59 replies 645 retweets 2,750 likes
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  3. Jan 12

    Some interesting (and sage, IMHO) insights from Mr. Bezos:

    12 replies 70 retweets 301 likes
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  4. Jan 8

    Sleep evolved before the brain did? Fascinating new findings in the primitive hydra (brain-less) suggest so.

    16 replies 62 retweets 358 likes
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  5. 14 Dec 2020

    Sleep: a foundation, not pillar, of mental health? Associational study of +1,000 people. Sleep quality was the strongest predictor of depressive symptoms and flourishing, followed by sleep quantity. Next were physical activity then diet (fruit & veggies).

    34 replies 285 retweets 1,038 likes
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  6. 15 Apr 2020

    Lighthearted, I do hope British Airways reads this. Breakfast chocolate aids jet-lag reset (in rats, at least). Evening chocolate... not so much.

    17 replies 46 retweets 416 likes
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  7. 27 Jan 2020

    Associational study showing that nearly 25% of a student’s grade is predicted by sleep in the weeks before the exam. Suggests sleep hysteresis: it’s not simply sleep the night prior to the exam. Rather, it's your aggregated sleep history over many weeks.

    38 replies 443 retweets 1,232 likes
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  8. 5 Nov 2019

    Our new findings reveal a novel role for deep (NREM) sleep in rewiring and calming the anxious brain. Fantastic work by research fellow, .

    42 replies 310 retweets 1,025 likes
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  9. 1 Nov 2019

    More evidence showing how the brain cleans itself of toxins during sleep, including those associated with Alzheimer's disease. Wake = Low-level brain damage Sleep = Sanitary salvation

    44 replies 838 retweets 2,106 likes
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  10. 13 Sep 2019

    A jump in the number of people sleeping <6hr from 2010 (30%) to 2018 (35%). Hardest hit: those in healthcare (45%) and the military (50%). This is unsustainable chronic sleep deprivation for maintaining human health.

    41 replies 377 retweets 1,037 likes
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  11. 17 Jun 2019

    Our newly published work on sleep as an early biomarker of Alzheimer’s disease risk. Wonderful efforts from grad student, Joe Winer.

    : predicts accumulation of 's pathology & -amyloid in human
    22 replies 155 retweets 558 likes
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  12. 14 Jun 2019

    So tragic: midnight-3AM is peak time for suicide completion in veterans. Nocturnal wakefulness remains a serious risk to our mental health.

    23 replies 119 retweets 454 likes
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  13. 2 May 2019

    How to give your child 2.4 hours of extra sleep? Fascinating work suggest: 1. Consistent bedtime 2. Avoiding sugary drinks 3. Removing toys and electronics from the bedroom 4. Calming activities pre-bed (e.g. reading, jigsaw puzzles)

    45 replies 353 retweets 1,237 likes
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  14. 1 May 2019

    Encouraged by the FDA reinforcing the mortality risk and associated dangers of sleeping pills. Especially due to the safe alternative of CBT-I.

    14 replies 75 retweets 258 likes
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  15. 15 Apr 2019

    They say don't meet your idols for fear of disappointment. This does *not* apply to . A true privilege to converse with you, Peter, for 6.5 hours straight (w/one toilet break). Thank you for the podcast trilogy, and incoming AMA...

    67 replies 138 retweets 1,002 likes
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  16. 18 Mar 2019

    Should anyone be interested, I’ll be giving a free public lecture on sleep at the San Francisco Hyatt Regency Hotel this Saturday afternoon, March 23rd.

    24 replies 40 retweets 310 likes
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  17. 17 Mar 2019

    Thank you, , for such a wonderfully thoughtful, deep and wide-ranging conversation! I hope we get the chance to do it again in the future--I really do. Continue to be brilliant, Rhonda!

    New 2.5-hr podcast with Dr. Matt Walker () on the critical role sleep plays in enhancing learning and maximizing creativity, how deep sleep is key for the prevention of brain aging, how sleep regulates blood glucose and immunity & much more!
    Show this thread
    26 replies 58 retweets 528 likes
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  18. 28 Feb 2019

    Sincere thanks to for hosting me on the TRAINED podcast. Such an honor to chat with Ryan about all things sleep and performance.

    6 replies 47 retweets 268 likes
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  19. 28 Jan 2019

    The pain of sleep loss. Thanks to for featuring our latest research publication.

    12 replies 222 retweets 507 likes
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  20. 11 Jan 2019

    Sincere and reverent thanks to the for taking a risk on public sleep advocacy: Sleep expert Matthew Walker on the secret to a good night’s rest

    16 replies 107 retweets 403 likes
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