Many different things can bring on an asthma episode. Asthma cannot be cured, but it can be controlled. There are different types of medicine to control asthma. People with asthma have no way to monitor how well their lungs are functioning. Both children and adults can have asthma.
Tobacco smoke can make an asthma episode worse.
People with asthma should not exercise. Asthma is a common disease among children and adults in the United States, and it is increasing. About 10 million people have asthma, of whom 3 million are under 18 years of age. Asthma is not an emotional or psychological disease, although strong emotions can sometimes make asthma worse. People with asthma have sensitive lungs that react to certain things, causing the airways to tighten, swell, and fill with mucus.