Now ，some young people from smoking ，they think that smoking is a enjoyment。In fact smoking is harmful to health，more dangerous for young people。After scientists and doctors was found smoking can cause several diseases，such as heart disease, cancer。 Now，more and more people the world has been determined to quit smoking or quit smoking。We should not do more young people continue to smoke this stupid，young people are the future constructor of the motherland，should make full use of time to learn，do the motherland, the people, for their benefit，should be determined to get rid of bad habits，develop good habits。