They also say that the smoke contains over 4,000 chemicals, 50 of which are known to be cancer-related. Secondhand smoke has been linked to heart and respiratory disease; lung, breast, cervical, and nasal sinus cancers; strokes and miscarriages. In children, dangers include sudden infant death syndrome, fetal growth impairment, bronchitis, pneumonia, asthma and middle-ear disease. People who smoke subject themselves to deadly diseases, as well as long- and short-term health problems. Non-smokers should not have to live with the consequences of smokers' actions. It is obvious that if not permitting smoking in public areas may help people refrain from smoking. Some argue that there would be a significant decline in the clientele in bars and clubs, but non-smokers actually outnumber smokers three to one. A ban could actually increase people going out because nonsmokers would be more comfortable.