A speech on smoking is harmful to health.

Dear teachers and students:

Good Morning, everyone! The topic of my speech today is: cherish life and stay away from cigarettes. May 3 1 day every year is the World No Tobacco Day initiated by the World Health Organization.

I believe everyone knows that the harm of tobacco is one of the most serious public health problems in the world today, and it is also the biggest risk factor for human health. At present, the total number of smokers in the world has exceeded 654.38+0.3 billion, and nearly 5 million people die from smoking every year. Therefore, in the month of 1987, 1 1, the United Nations World Health Organization suggested that1April 7, 988 be designated as the first World No Tobacco Day, and then it will be fixed as May 3 1 every year. The purpose of this activity is to warn the world that smoking is harmful to health, call on people to quit smoking and create a health for themselves. Our ideological, moral, scientific and cultural qualities are not only an important manifestation of the current level of social civilization, but also have a decisive influence on China's future social outlook and national spirit. Smoking among middle school students, as a serious social problem, has aroused widespread concern.

So how harmful is tobacco?

According to research, nicotine contained in cigarettes can poison a mouse, while nicotine contained in a pack of cigarettes can poison a cow. Smoking a pack of cigarettes every day is equivalent to inhaling 50-70 mg of nicotine. If you take these doses at one time, people will die. Besides nicotine, about 5,000 compounds produced when cigarettes are lit are the chief culprit of cancer.

In a statement released this year, the World Health Organization pointed out: "Today, tobacco has become the second largest hazard in the world. The harm caused by smoking is more serious than SARS and tsunami. If the current trend remains unchanged, by 2020, 654.38+0 billion people will die prematurely every year because of smoking. "

If tobacco is so terrible, why do so many people smoke? There are two main reasons: first, nicotine contained in tobacco is addictive, which makes people dependent and difficult to quit; Another reason is that most people have not regarded smoking as an ugly habit that harms others and themselves. On the contrary, they think it is a very fashionable and unique thing. Therefore, there are more and more smokers, and people rely on it more and more. However, the tobacco dealer said, "The cigarettes we produce are for those who have no knowledge, young people and stupid people."

So please "cherish life and stay away from cigarettes"!