Review: Why We Sleep

Introduction

I made a very lovely ritual with the book Why We Sleep: Unlocking the Power of Sleep and Dreams written by neuroscientist Matthew Walker. I put the title on the shelf next to my bed, and I had been reading it every night before I had fallen asleep. 

What did I know before reading it? That sleeping is wonderful. 

What do I know now? If I don’t sleep 12 hours a day, I’ll probably get fat, lose fertility, get Alzheimer’s disease, lose friends, and die prematurely.

Well, let’s be serious now. The book is excellent!

Review

I can’t really find anything to complain about. The book is full of fun facts, stories and information. Real data and studies support all statements in it. The author always mentions when, where and how was the methodology in studies designed, what were limits of these studies etc.

At the same time, the book is not dull because of these studies. It is written very readably. To explain some of the more complex biological processes, the author uses numerous amusing comparisons and gives examples from practice. The author is very good at explaining.

I think it’s one of the best popular science books I’ve ever read – because it’s both sophisticated and full of information. Therefore, it can also be great for people who know nothing about biology or neurology.

It paradoxically disturbed my sleep quite a bit – I planned to read one subchapter every evening, but I often read and read and read – until I had less time to sleep than the author recommends. The book’s content had a significant impact on my life – every day, I spewed a lot of fun facts at my parents, which I learned in the book the night before. I’m almost afraid that I’ve started acting like a maniac who claims that sleep can solve all of humanity’s problems.

Fun facts

  • Sleep helps to study – it prepares the brain in advance to absorb new information. The next night it can consolidate new knowledge and put it into context. At night, it forms various associations. If we need to solve a problem, it is better to sleep on them, because overnight our brain can find a solution on its own.
  • The same goes for motor learning (e.g. playing the piano, riding a bike)
  • Sleep fixes good memories and relieves trauma, so if we are unhappy about something, sleep gradually dulls these feelings. It actually works as such an antidepressant.
  • These effects apply to healthy individuals. There are many diseases in which some parts of the brain do not work.
  • There is a disease in which sleep suddenly stops working entirely – and the individual is awake until his death. And since his brain cannot rest, he gradually forgets, loses the ability to move, think, perceive.
  • Most people suffer from sleep deprivation and do not even know it. Human is the only creature on the planet who voluntarily undergoes this deprivation.
  • Lack of sleep causes a higher risk of heart attack, causes microsleep, which causes many people to die on the roads. Also, scientists have found a link between shorter sleep and cancer. And I could go on with the list.
  • Alcohol acts as a sedative. It does not put us to sleep, but it makes us unconscious – so even if we feel that we sleep well after drink, the body and brain do not rest during “sleep” under the influence of alcohol and do not show its benefits mentioned above.
  • The same goes for sleeping pills. In addition, they have a vicious circle – during the day, we are tired of them, so we drink coffee. The coffee kicks us, and we can’t sleep in the evening, so we take pills, which make us tired again.
  • The appropriate temperature for the room in which we sleep is 18 degrees. If we have trouble falling asleep, a hot tub can help us – when we get out of it, the body cools down sharply, and thanks to the excluded dose of melatonin, we can easily fall asleep.

How to sleep better

  • The regularity – fall asleep/wake up at the same time every day.
  • No alarm – if it’s possible, don’t use it and be natural.
  • No alcohol 2 hours before sleep – The same goes for food.
  • Power naps – the’re a miracle, but not more than 30 minutes per day!
  • Blue light – do not look at your mobile phone or computer before going to bed. Alternatively, use a filter that suppresses blue light.
  • The book instead of the phone – to replace mobile scrolling and internet browsing with book browsing 🙂
  • Bed just for sleeping – you can let your body get used to the fact that it should sleep when it is in bed. And that the mattress is mainly for this purpose – and not for learning etc.
  • No “big questions” – don’t solve them before sleep, leave problems for tomorrow.
  • Be more receptive to yourself – find out how many hours you need, at what time you need to go to bed ideally, how much coffee affects you.
  • Caffeine is evil – There is a whole deterrent chapter in the book 😀 Be generally careful with that coffee. 
  • Open the window – and try to sleep without the heating on. Cold is beneficial.
  • If you have any long-term sleep problems, solve them – for example, with a doctor or psychologist.

Conclusion

I would recommend the book to everyone. It’s a real life-changer, I swear. Your body, your mind, your friends, your surroundings – everything and everyone will be glad after you read it :))

In this article, I present an excellent book which I have read recently. The book is about sleeping. It explains why sleep is important and give some recommendation for better sleep. I enjoyed reading it, so I want to recommend it to you too.

TABLE OF CONTENT

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AUTHOR

Veronika Batelková – a student of Information and Library Studies. I made the English version of the portfolio as a place for all my English homework for the subject Librarian English.

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