An invention I dislike

A cigarette is an invention I dislike. Nowadays, an increasing number of people smoke. According to a survey, quite a few people die each year from diseases linked to smoking. Besides, smoking is one of the reasons of polluted indoor air. It also makes other people inhale second hand smoke. Moreover, my brother also has learnt how to smoke, which has a detrimental effect on his health. Cigarettes contain cancer-causing chemicals, which are harmful to health. Nothing is more important than health. If only my brother were not smoking. On the other hand, the reason why people smoke is to release the pressure of work. Another reason is that teenagers are curious about smoking and they think it is a cool thing.