Two hundred years ago asthma was considered a mild ailment. Having asthma generally meant having a long life free of other diseases. However, no one could explain how asthma prevented other ailments or why asthmatics lived longer than others. Today, we know that asthma is not an ordinary disease.
Bronchospasm, the main component of asthma, acts as a protective mechanism, helping to maintain biological constants and important functions at near normal levels.
We have also learned that asthma or bronchospasm cannot exist unless the Carbon Dioxide (CO2) level in the lungs is abnormally low. Since the metabolic and immune systems can function correctly only if the CO2 level is normal, the limit of the asthmatic's CO2 level protects him or her and allows for a long and healthy life. It is this powerful defense mechanism that provides the asthmatic with an improved biological system. Evidently, bronchospasm is one way the organism has adapted to its environment.
Modern drug treatment for asthma is aimed at neutralizing this protective mechanism. The organism then fights back again and again with more intensive bronchospasms leading to a rapid deterioration of the asthma from drug treatment. It is not possible to cure asthma by removing a protective mechanism like broncospasm. Only when the condition responsible for the bronchospasm is removed, can asthma be reversed.