Asthma can start at age 2 or 3 and it affects 10% of school-aged children. Of those affected, two-thirds are boys and one-third are girls. Unfortunately, the number of people with asthma is increasing due to many causes. Some of the main causes include the progressive pollution of air, the increasing number of people who are inheriting the disposition for allergies, and the weakening of the children’s immune systems.
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