- Asthma is a chronic lung condition that affects over 3 million Canadians and cannot be cured but can be managed. It causes reversible airway obstruction and symptoms include coughing, shortness of breath, wheezing, and chest tightness. - Asthma symptoms are triggered by factors like allergens, infections, exercise, air pollution, emotions, and medications. Exercise is a trigger for 90% of people with asthma. - Asthma is treated through medications like rescue inhalers to quickly reverse symptoms and preventive controller medications to reduce inflammation and prevent symptoms. Proper medication use and trigger avoidance can help asthma be managed.