Long-awaited summer will start very soon. We are looking forward our vacations and bright sun. However you should remember that sun left not only beautiful sun tan but also it is a source of sun burns. On the one hand sun and sunlight is vital essential. Sunlight, warmth and sun energy has good influence on human body and soul, mood, energy, glory of life. Sun gives us health and life. When sun is shining, the whole world seems better, more colorful and attractive to us.

Sunlight consists of three components:
- Visible daylight in the range of medium waves;
- Invisible infrared rays;
- Ultra-violet rays (UV).
In their turn ultra-violet rays divide into three components: UV-A, UV-B and UV-C. UV-C rays are the most harmful rays for people. Fortunately, the ozone atmosphere layer keeps people from UV-C rays.

Sun tan is a natural skin reaction as a natural protection from the sun. Sometimes people get skin disease because of wrong sun burns. Follow my tips and have a great