Asthma is a chronic lung disease that has afflicted more people in the last 20 years than ever. Some doctors attribute the increase to the pollutants in the air, the changes in the modern diet, and lack of adequate ventilation in homes.
According to the Mayo Clinic, asthma symptoms vary by individuals and may be mild, severe, or somewhere in between. Shortness of breath and tightness in the chest, along with a wheezing sound when exhaling are common asthma symptoms. Common treatments include inhalers and other medications.