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The application of the book Why We Sleep by the American writer Matthew Walker talks about the many advantages of sleep. Correct sleep, as the dog talks about, extends your life, strengthens your memory, makes you maintain your agility, makes you more beautiful in the eyes of the beholders, opens your appetite for better food, protects you from the evil of cancer and Alzheimer's, and protects you from colds It reduces your risk of angina and stroke, protects you from diabetes, makes you happy in your life and removes depression, worry and sadness all of this and more. You only have to sleep between 7 to 9 hours every night, and take some measures to have a good sleep every night. .

The application of the book Why We Sleep by the American writer Matthew Walker explains a lot the three basic pillars of human health are: sleep, diet and exercise. The writer goes further, saying that sleep is the solid rule without which neither diet nor exercise will benefit you.

The author, a professor of neuroscience at the University of Berkeley, draws in this book largely on research that he himself or a group of sleep specialists have made a major breakthrough over the past two decades.

The book is divided into four sections, the first section of which is to introduce the essence of sleep and its types, the biological / evolutionary history of sleep (do animals also sleep and how, when did sleep arise, etc.), in addition to the change in the nature of a person’s sleep through the various stages of his life.

The second section (and it is the most exciting and intimidating section) answers the question of why we should sleep and reviews the consequences of not getting enough sleep every night, before moving on to talk about the dream world in the third section, to answer the question of how and why we dream, and whether you play Dreams play an important role in the life cycle of information in our minds, or is it just a side matter. Before concluding the book with a chapter on the consequences of lack of sleep at the level of societies (not just individuals)

The author inferred a group of experiments on mice where they were prevented from sleeping for several days, and compared to a group of mice that were deprived of eating, so it was found that the mice that were deprived of sleep all died before those that were forbidden to eat, as many studies have shown that there is a direct relationship between insufficient sleep and between several Diseases such as high blood pressure, diabetes and even Alzheimer's disease

The writer points out that there are two big politicians who are known to have poor sleep, namely Margaret Thatcher and Ronald Reagan, both of whom ended up suffering from Alzheimer's disease.

Unfortunately, any lack of sleep cannot be compensated. It is not enough to sleep long during the weekend to compensate for the deficiency that you recorded during the week, and every missed hour of sleep has a direct impact on all aspects of your life and your mental and physical health.

We cannot summarize this book here. If you are interested in your health, all you have to do is download this book and read it very carefully.

The Book Why We Sleep Application by the American writer Matthew Walker is a very small application that does not take much space in the phone's memory and is designed to suit all devices.

Finally, we invite you to download this book and share it with your friends by sending it through WhatsApp or Facebook, so that the benefit will prevail to everyone. We also ask you to rate us with five stars to encourage us to continue.

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