Deep sleep has a cleansing, restorative and energizing effect on our body. During the deep sleep, the body temperature rises and we sweat more, which makes the skin secrete more minerals. In addition, our lungs exhale more carbon dioxide, and the intestines transport more excrement. The kidneys filter the blood, organs get rid of toxins, skeletal muscles are deacidified, and women menstruate more.
At the same time as these processes take place, over 100'000 billion cells are restored during their 7-year cycle. Growth hormones are released, cells are replaced, and muscle tissue is built up through protein synthesis. Mineral losses are replenished, wounds heal, and corticosteroid hormones build up our resistance to infections and exhaustion. We become immune and resistant to all possible diseases.
White blood cells surround and destroy bacteria; in the lymph glands and in the spleen, they remove bacteria from the blood. Our 'batteries' are recharged, and released biotin produces the vital hormonal energy that restores our aura.
Intervertebral discs are regenerated and the vertebrae are rearranged.
For the mind, the deep sleep has a restorative effect, especially when it comes to memory. What we experienced and learned in the daytime is stored in this stage of sleep, and at this stage we never actually dream. Therefore, deep sleep is extremely important for students and growing children, and the adage that “sleep before midnight counts double” is applicable.
In short, we heal ourselves, physically and mentally, during the deep sleep stage.