4.  Most young people admit they do not know to plain their leisure  That's why now there are many serious problem as alcoholism, drug abuse and suicide among teenagers all over the world.

5. Drug addiction

6. 31% of interviewed teenagers could not name a health risk associated with Ecstasy. 49% of young drug-users say they would stop using drugs if they thought they were getting addicted 35% of young drug-users say they don’t know why they use them

7. Alcoholism

8. It was said so much about the harm of smoking. But, in spite of all that the number of smoking people is not diminished. And what is more grievous, not only the teens but also the junior schoolboys begin to smoke. I think those, who don`t do his (her) best in study or school life, as a rule begin to smoke at the school age. It was proved, that there is no such organ which would not suffer from smoking. Smoking is not a harmless pastime which can be given up without efforts. It is necessary to have the will - power to stop smoking.

9. suicide

10. Of the 83 ways to commit suicide by hanging, most people choose, followed by poisoning. About 50% of people leave suicide notes. What is striking is that the standard of living and the number of suicides are not linked.

11. On the other hand young people have to deal with complex situations in their lives, many of which are simply not ready

12. I consider that there is no place to these habits in our life. To my mind, only healthy people should live on our planet and then our Earth will be brighter and more beautiful, because only the healthy person will provide its further development and prosperity.