9.Air Pollution
Outdoor and indoor air pollution can worsen asthma symptoms. Top offenders include smog, cigarette smoke, paint fumes, and hair spray. They don’t cause an allergic reaction, but they do irritate your airways. They’re known as nonallergic asthma triggers.
10.Exercise
Although exercise is good for you, physical activity can trigger symptoms for many people. This is sometimes called exercise-induced asthma. Fortunately, you can control asthma so you don’t have to give up your workouts, sports, or other activities you enjoy.
