Two thirds of adults in all developed countries do not enjoy the highly recommended 8 hours of sleep per night. If this fact does not surprise you, its consequences will. In fact, there is a very close correlation between lack of sleep and the appearance of diseases such as cancer, Alzheimer's, diabetes, obesity, cardiovascular diseases, mental illnesses such as depression, anxiety and suicidal thoughts. Lack of sleep is also the cause of numerous traffic accidents every year.
In spite of being one of the most important aspects of our lives, sleep is still one of the greatest biological mysteries. In recent years, research has begun to understand the tremendous benefits that sleep brings to both the brain and body. Sleep enhances our ability to learn, memorize, make logical decisions and it is beneficial for our psychological health, as it recalibrates our emotional circuits. Dreams create a virtual reality that combines knowledge of the past with knowledge of the present, fostering creativity. Sleep restores the harmony of our immune system, it recalibrates the balance of glucose in the blood and regulates our appetite. There is no other state that is equally capable of balancing our physical and mental health. There is no biological function that does not benefit from a good night's sleep.