What are the most common triggers of asthma?
The most common triggers of asthma are: – viral respiratory infections, such as influenza (the flu) or bronchitis; – bacterial infections, including sinus infections; – allergic rhinitis; – irritants, such as pollution, cigarette smoke, perfumes, dust, or chemicals; – sudden changes in either temperature or humidity, especially exposure to cold air; – allergens, for people with allergies; – emotional upsets, such as stress; and – exercise.
