Why You're Always Tired: 8 Science-Based Secrets to Boost Your Energy

🐉 Want to learn Chinese? Get my FREE crash course on how to learn Mandarin faster & smarter http://link.izzysealey.com/bm 💌 Interested in personal development and guided journalling? Join my FREE email community, Letters to My Younger Self for weekly personal growth tips, heartfelt advice, and journalling prompts 👉 https://link.izzysealey.com/letters 📸 Follow me on Instagram for daily updates 👀: @izzysealey | https://instagram.com/izzysealey 🔗 Find out more (all my links): https://izzysealey.com/links 🌍 My Little Corner of the Internet (aka my website): https://izzysealey.com/ Note that there are a number of medical conditions that can lead to persistent fatigue - if you think this could be you, please consult a qualified medical professional for individualised assessment and advice! This YouTube video is purely for general informational purposes about sleep and is not medical advice. » My Favourite Things 💡 🎬 How to Become a Successful Part-Time YouTuber (use code IZZY for 10% off): https://ptya.samcart.com/referral/IKjWOptt/1NaeHyKo1QJMxGhi 🎶 Where I find the perfect music + sounds (get a 30-day free trial): https://share.epidemicsound.com/nlt45q 📚Read more books with my fav book summaries (get a free trial and 20% off here): https://shortform.com/izzy 🗣 Get fluent with italki language tutoring - get $10 free credits with this link: https://www.italki.com/affshare?ref=af8452622 ⚙️ My Gear for making videos https://affiliate.notion.so/izzys-gear » Who am I? Hey there, my name’s Izzy 🙋🏻‍♀️ I’m a Cambridge uni grad, medical doctor, and YouTuber. I love to learn Chinese, journal, and do yoga. My mission is to help you fulfil your innate potential and create a life you love through personal growth in mind, body and spirit. :) 👨‍👩‍👧‍👦 Sub count: 388,000 P.S. some of the links in this description are affiliate links that help support the channel at no extra cost to you. Thank you for the support! :) » Sources 🤓 Books: Why We Sleep, Dr. Matthew Walker Amazon link: https://geni.us/whwesleep Shortform link: https://www.shortform.com/app/book/why-we-sleep Hello Sleep, Dr. Jade Wu Amazon link: https://geni.us/hellosleep The Sleep Prescription, Dr. Aric A. Prather Amazon link: https://geni.us/sleepprescription The Science of Sleep, Heather Darwall-Smith, MA. Amazon link: https://geni.us/scienceofsleep_ Scientific Studies: Steven W. Lockley and others, High Sensitivity of the Human Circadian Melatonin Rhythm to Resetting by Short Wavelength Light, The Journal of Clinical Endocrinology & Metabolism, Volume 88, Issue 9, 1 September 2003, Pages 4502–4505 Study Link: https://doi.org/10.1210/jc.2003-030570 Pietilä J, Helander E, Korhonen I, Myllymäki T, Kujala UM, Lindholm H. Acute Effect of Alcohol Intake on Cardiovascular Autonomic Regulation During the First Hours of Sleep in a Large Real-World Sample of Finnish Employees: Observational Study. JMIR Ment Health. 2018 Mar 16;5(1):e23. doi: 10.2196/mental.9519. PMID: 29549064; PMCID: PMC5878366. Study link: https://mental.jmir.org/2018/1/e23/ Quotes + Case Studies: Dr. Andrew Huberman: “Using Light for Health” Article link: https://hubermanlab.com/using-light-for-health/ Dr. Andrew Huberman: “Toolkit for Sleep” Article link: https://hubermanlab.com/toolkit-for-sleep/ CNBC: “What chess grandmasters eat for peak concentration and performance” Article link: https://www.cnbc.com/2019/09/20/chess-grandmaster-diet-exercise-routine-before-tournament.html?&qsearchterm=sleep athlete CNBC: “LeBron James reveals the nighttime routine that helps him perform ‘at the highest level’” Article link: https://www.cnbc.com/2018/12/21/lebron-james-reveals-the-nighttime-routine-that-sets-him-up-for-success.html CNBC: “Olympic hero Michael Phelps says the secret to his success is one most people overlook” Article link: https://www.cnbc.com/2017/02/14/olympic-hero-michael-phelps-says-this-is-the-secret-to-his-success.html Other article citations: Sleep Foundation: “Adenosine and Sleep” Article link: https://www.sleepfoundation.org/how-sleep-works/adenosine-and-sleep#references-83596 Sleep Foundation: “Circadian Rhythm” Article link: https://www.sleepfoundation.org/circadian-rhythm National Institute of Health: “Pharmacology of Caffeine” Article link: https://www.ncbi.nlm.nih.gov/books/NBK223808/ Centers for Disease Control and Prevention: “Effects of Light on Circadian Rhythms” Article link: https://www.cdc.gov/niosh/emres/longhourstraining/light.html Financial Times: “Sleep expert Matthew Walker on the secret to a good night’s rest” Article link: https://www.ft.com/content/e6ccdcac-133d-11e9-a581-4ff78404524e Zen Buddhism: “Mindfulness Meditation To Sleep Better” Article link: https://www.zen-buddhism.net/mindfulness-meditation-for-sleep/ UpToDate: “Cardiovascular effects of caffeine and caffeinated beverages” Article link: https://www.uptodate.com/contents/cardiovascular-effects-of-caffeine-and-caffeinated-beverages