Figure 17-3.
Common triggers of asthma include allergens, irritants, gastroesophageal reflux disease, medications, weather changes, viral and bacterial infections, emotion stressors, foods and food additives, and physical exercise.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.