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"Why We Sleep" Matthew Walker, PhD

Updated: Apr 16

book review Why We Sleep Matthew Walker

What? We spend one third of our lives asleep, or at least we are meant to. Sleep is essential for physical and mental health and our brain health is often compromised with terrible long-term outcomes. We need to sleep well to be healthy, productive and sane.

Who? Matthew Walker PhD is a neurologist and published sleep researcher.

Why? Given the important role of sleep and how poorly most of us do at it this book covers a key topic that needs more attention. Walker provides the science and the recommendations on what we can all do to improve our sleep, and, health.

Learn more here, Matthew Walker on the Rich Roll podcast:

So… How is your sleep? Do you get 7 hours or more of quality sleep per night?

Look out for the publication on Kindle (or via Amazon or your favourite book retailer)

Sleep Well,


  • A good night's sleep addresses one of the pillars of health. What else can you focus on to maximise your health and longevity?

sleep Singapore

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Related Studies

Heller HC, Herzog E, Brager A, Poe G, Allada R, Scheer F, Carskadon M, de la Iglesia HO, Jang R, Montero A, Wright K, Mouraine P, Walker MP, Goel N, Hogenesch J, Van Gelder RN, Kriegsfeld L, Mah C, Colwell C, Zeitzer J, Grandner M, Jackson CL, Roxanne Prichard J, Kay SA, Paul K. The Negative Effects of Travel on Student Athletes Through Sleep and Circadian Disruption. J Biol Rhythms. 2024 Feb;39(1):5-19. doi: 10.1177/07487304231207330. Epub 2023 Nov 18. PMID: 37978840.

Vallat R, Berry SE, Tsereteli N, Capdevila J, Khatib HA, Valdes AM, Delahanty LM, Drew DA, Chan AT, Wolf J, Franks PW, Spector TD, Walker MP. How people wake up is associated with previous night's sleep together with physical activity and food intake. Nat Commun. 2022 Nov 19;13(1):7116. doi: 10.1038/s41467-022-34503-2. PMID: 36402781; PMCID: PMC9675783.

Krause AJ, Simon EB, Mander BA, Greer SM, Saletin JM, Goldstein-Piekarski AN, Walker MP. The sleep-deprived human brain. Nat Rev Neurosci. 2017 Jul;18(7):404-418. doi: 10.1038/nrn.2017.55. Epub 2017 May 18. PMID: 28515433; PMCID: PMC6143346.

Mander BA, Winer JR, Walker MP. Sleep and Human Aging. Neuron. 2017 Apr 5;94(1):19-36. doi: 10.1016/j.neuron.2017.02.004. PMID: 28384471; PMCID: PMC5810920.

Resources: Health Literacy

What is health literacy? CDC website

Huang LY, Lin YP, Glass GF Jr, Chan EY. Health literacy and patient activation among adults with chronic diseases in Singapore: A cross-sectional study. Nurs Open. 2021 Sep;8(5):2857-2865. doi: 10.1002/nop2.873. Epub 2021 May 4. PMID: 33942559; PMCID: PMC8363362.

Liu C, Wang D, Liu C, Jiang J, Wang X, Chen H, Ju X, Zhang X. What is the meaning of health literacy? A systematic review and qualitative synthesis. Fam Med Community Health. 2020 May;8(2):e000351. doi: 10.1136/fmch-2020-000351. PMID: 32414834; PMCID: PMC7239702.

Šulinskaitė K, Zagurskienė D, Blaževičienė A. Patients' health literacy and health behaviour assessment in primary health care: evidence from a cross-sectional survey. BMC Prim Care. 2022 Sep 5;23(1):223. doi: 10.1186/s12875-022-01809-5. PMID: 36064351; PMCID: PMC9446736.


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