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What Your Sleep Is Trying To Tell You: How To Fix Your Sleep Problems, Reset Your Brain & The Difference Between Fatigue and Tiredness with Guy Leschziner #528

Feb 26, 2025 1h 46m 32 insights
Did you know that up to 40% of adults in Western countries struggle to get enough sleep? While some societies have historically never even had a word for insomnia, our modern world has created an epidemic of sleep problems, which affect not only our creativity, empathy, appetite and mood but countless other aspects of who we are, too.   This week's guest is Professor Guy Leschziner, a neurologist at Guy's and St Thomas' Hospitals in London and a professor of neurology and sleep medicine at King's College London. He is also the author of several books, including The Secret World Of Sleep: Tales of Nightmares and Neuroscience and his latest, Seven Deadly Sins: The Biology of Being Human.   In this fascinating conversation, we discuss: The crucial distinction between chronic sleep deprivation and clinical insomnia - understanding which affects you is key to finding the right solution The importance of sleep quality - not just quantity - and why some people can sleep for hours, yet still feel unrested An incredible treatment called CBT-I (Cognitive Behavioural Therapy for Insomnia) which has an 80% success rate for insomnia The real impact of common lifestyle factors on sleep - like caffeine, screen time, and blue light  The pros and cons of sleep trackers  Practical strategies for shift workers - discover how to adapt your sleep schedule if your work includes irregular hours The fascinating connection between societal sleep deprivation and our collective wellbeing   With over two decades of experience running sleep disorder clinics, Guy brings clarity to the often confusing world of sleep, offering evidence-based insights and practical solutions throughout our conversation.    As he points out, our sleep needs are highly individual, so I hope this episode guides you in finding the approach that works best for you.   Support the podcast and enjoy Ad-Free episodes. Try FREE for 7 days on Apple Podcasts https://apple.co/feelbetterlivemore   Thanks to our
Actionable Insights

1. Implement CBTI for Chronic Insomnia

For chronic insomnia, engage in Cognitive Behavioral Therapy for Insomnia (CBTI), a non-drug-based, structured program that retrains your brain to associate bed with sleep, improves sleep quality, and offers long-term benefits with an 80% success rate.

2. Increase Sleep Opportunity (If Sleep Deprived)

If you experience chronic sleep deprivation (not insomnia), the primary solution is to simply allocate more time in bed, as you can sleep when given the opportunity, unlike those with insomnia.

3. Seek Professional Help for Insomnia

If you consistently struggle to fall asleep despite wanting more rest, consult your GP or a sleep specialist to explore potential solutions for your insomnia.

4. Understand Your Sleep Challenge Type

Before seeking solutions, identify whether your sleep issue is due to an inability to fall asleep (insomnia) or simply not allocating enough time for sleep (sleep deprivation), as the solutions differ significantly.

5. Self-Assess Your Sleep Sufficiency

To determine if you’re getting enough sleep, ask yourself if you maintain a consistent sleep schedule, avoid excessive weekend lie-ins, wake up refreshed, and can stay awake throughout the day until your routine bedtime.

6. Release Need for Control Over Sleep

If you have a personality type that seeks to control every aspect of life, recognize that sleep cannot be actively controlled; trying too hard can be counterproductive and create anxiety, making sleep more difficult.

7. Avoid Over-Focusing on Sleep

Excessive focus and worry about sleep can paradoxically make it more difficult to fall asleep, suggesting a need to manage anxiety around sleep.

8. Reserve Bedroom for Sleep Only

To strengthen the association between your bed and sleep, avoid activities like working or watching TV in bed, especially if you struggle with insomnia, as spending time awake in bed reinforces an association with wakefulness.

9. Optimize Sleep Hygiene

Avoid caffeine and nicotine late at night, ensure your bedroom is quiet and at the right temperature, remove sleep disruptors from your environment, and get exercise during the day to promote a good night’s sleep.

10. Implement Pre-Bed Digital Detox

Aim to switch off laptops and avoid mentally engaging with work 60 to 90 minutes before bedtime, as this single decision can significantly improve sleep quality by allowing your mind to wind down.

11. Personalize Caffeine Cut-off Time

Identify your personal caffeine sensitivity and establish a cut-off time (e.g., no caffeine after noon or 10 a.m.) to prevent it from negatively impacting your nighttime sleep quality.

12. Cut Caffeine After Lunch

If you experience intermittent sleep problems and consume coffee after lunchtime, eliminate caffeine intake after lunch as a straightforward step to improve your sleep.

13. Manage Lifestyle for Sleep

If you experience chronic sleep deprivation due to lifestyle choices, such as juggling too much, excessive socializing, or long working hours, prioritize adjusting these behaviors to increase your sleep opportunity.

14. Avoid Sleep Trackers if Anxious About Sleep

If you are already anxious about your sleep or have insomnia, using a sleep tracker can worsen your sleep by increasing focus and worry about the data, regardless of its relevance.

15. Ensure Sleep Tracker Data is Actionable

When using a sleep tracker, ensure the data provides clear insights that can lead to actionable steps for improving your sleep or overall well-being, otherwise question its utility.

16. Use Sleep Trackers for Data Correlation (If Not Anxious)

If you generally sleep well and enjoy tracking personal data, a sleep tracker can be useful for understanding correlations between sleep opportunity and other health parameters, without causing harm.

17. Use Trackers to Tune into Self

Use sleep trackers as a tool to gain objective data that helps you tune into your own body and compare it with your subjective feelings, rather than becoming solely reliant on the numbers.

18. Delay Circadian Rhythm with Evening Light

To delay your sleep phase and shift your circadian rhythm (e.g., for travel or specific work schedules), expose yourself to bright light, such as from a sun lamp or light-emitting glasses, in the evenings.

19. Adjust All Zeitgebers to Shift Rhythm

When attempting to shift your circadian rhythm, adjust not only light exposure but also the timing of other ‘zeitgebers’ like exercise and meals, as these subtle influences collectively aid in the shift.

20. Strategic Evening Exercise for Rhythm Shift

Strategically use moderate to intense exercise in the evening to help delay your sleep onset, particularly when intentionally shifting your circadian rhythm, understanding that it typically hinders sleep if done too close to bedtime.

21. Maintain Shifted Rhythm Consistently

Once you’ve shifted your circadian rhythm for a specific period (e.g., a tour or shift work), maintain that new schedule consistently rather than attempting to shift back and forth frequently, as constant changes are difficult for the body.

22. Tune into Natural Light Cycles

Align your daily rhythms with sunrise and sunset to improve sleep, as the sun is a major influencer of the body’s circadian rhythm.

23. Recognize Fatigue’s Purpose

Understand that profound fatigue, such as when ill, serves an important role by diverting energy to aid recuperation and the immune system, rather than being a sign of moral failing.

24. Reframe ‘Sins’ as Biological, Not Moral

View behaviors often labeled as ‘sins’ (like sloth) as having an underlying biological basis and being part of human nature, rather than a reflection of moral failing or inadequacy.

25. Manipulate Emotions to Boost Energy

Understand that manipulating your emotional state can significantly influence your perceived energy levels and willingness to exert effort, allowing you to access reserves when needed.

26. Insomnia: Don’t Over-Worry Health Risks

For most individuals with insomnia, objective sleep measurements show their total sleep time is not significantly different from normal sleepers, meaning the long-term health consequences often discussed (e.g., cardiovascular disease) may not apply to them.

27. Don’t Panic About Dream Enactment

If you experience dream enactment behavior, avoid panicking as it can be triggered by various factors like antidepressants, not solely indicative of severe neurological conditions.

28. Educate Yourself & Consult GP for Sleep

If you struggle with sleep, start by educating yourself on sleep science, then consult your GP, as medical understanding of sleep has improved but can still vary.

29. Prioritize Patient’s Subjective Experience

When assessing sleep, integrate objective test results with the patient’s subjective experience, as solely relying on one or the other can lead to misdiagnosis or ineffective treatment.

30. Avoid Unnecessary Sleep Studies for Insomnia

For the vast majority of individuals with clear-cut insomnia, a sleep study is often unnecessary and unhelpful, as it may not accurately reflect typical sleep patterns and can even exacerbate anxiety.

31. Understand Test Purpose Before Testing

Before undergoing any sleep test, understand its specific purpose and the context in which it’s being performed to ensure its relevance and proper interpretation.

32. Embrace Napping if Part of Routine

If napping after lunch is a regular part of your routine and aligns with your body’s natural circadian dip, there is nothing wrong with it, and it can even offer benefits like improved afternoon blood pressure.