Modern people are not too concerned about their health. Of course, it is very difficult to lead a healthy lifestyle at a furious rhythm of the city. Proper nutrition, morning exercises, hiking, and 8 hours of sleep sidelined. As a result of violations of the correct lifestyle health problems begin: headaches, chronic fatigue, depression, frequent colds. A full night's sleep is one of the main keys of good health. How to change your sleep and your life for better? Very simple!