What are common triggers that may exacerbate asthma symptoms?

Common triggers that may exacerbate asthma symptoms include allergens, smoke, respiratory infections, and exercise. Allergens such as pollen, dust mites, mold, and pet dander are known to provoke asthma attacks in susceptible individuals. Exposure to smoke, whether from tobacco or other pollutants, can irritate the airways and lead to increased bronchial inflammation, worsening asthma symptoms.

Respiratory infections, such as colds or flu, can significantly impact asthma control as they can lead to increased mucus production, airway swelling, and heightened sensitivity of the bronchi. Additionally, exercise can be a trigger, especially in individuals with exercise-induced bronchoconstriction, where physical activity causes the airways to tighten.

While food allergens can affect some people with asthma, they are not as universal a trigger as the combination of allergens, smoke, respiratory infections, and exercise. Cold weather is also a potential trigger, but it is often considered less impactful compared to the comprehensive list provided in the correct answer. Thus, the systematic approach of recognizing multiple triggers is essential for effective asthma management.