关于吸烟有害健康的作文400字【一】
吸烟所带来伤害和疾病有些是致命的，像肺癌和一些其他呼吸道疾病。
烟里面有尼古丁，还含有焦油等有害物质。另外，烟的另一个坏处就是，如果吸上了就很难戒掉。我爸爸就是一个典型的例子。
我爸爸自从吸上烟后，就从来没有停过，一天起码可以抽一包烟，我曾多次劝告他戒烟，但都没有效果。
由此可见，吸烟对人的危害有多大，所以每个大人都不应该吸烟。
关于吸烟有害健康的作文400字【二】
Smoking is a bad habit that does harm to smoker and others. Many kinds of diseases and cancers are caused by smoking, such as tracheitis, lung cancer and many other diseases. Recent years, there are tens of thousands of people dying of smoking. But there still are many people enjoying smoking, because they think smoking is a kind of fashion and smoking is so cool, especially among teenagers. In addition, smoking does harm to others as well. Second hand smoking has been recognized harmful to other people. Even worse, it may cause more damages. Therefore, people should remember that smoking is harmful to others and those people who smokes should give up smoking as soon as possible.
吸烟是个坏习惯，它对吸烟者和别人都有害。很多疾病和癌症是有吸烟引起的，比如说气管炎，肺癌还有很多其他疾病。近年来，成千上万的人死于吸烟。但是仍然有很多人喜欢吸烟，因为他们认为吸烟是一种时尚，很酷，特别是青少年。另外，吸烟也会对别人有害。二手烟是公认的对别人有害的。更糟糕的是，它会带来更多伤害。因此，人们应该牢记吸烟有害他人，那些吸烟的人应该尽可能戒烟。
