Less cigarette smoke means healthier kids. Secondhand smoke is a trigger for asthma. Studies show that laws banning smoking spare many asthmatic children from hospital visits. It suggests that smoke-free laws have even greater health benefits than previously believed. Researchers in Scotland looked at hospital admissions for children under age 15 who had experienced asthma attacks. They found that asthma emergencies declined after Scotland banned smoking in public. Other countries, such as Britain, France, and Germany, have smoking laws now. Many restaurants, parks, and workplaces are smoke-free. Do It!

Smoking bans are .

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A effective
B temporary
C incomplete
D hostile