One thing that I've realized by reading the works of various asthma writers is that there doesn't seem to be a consistent definition of a cause and trigger. Today I would like to standardize these two terms so that there is no further confusion.
The word "asthma trigger" is not the problem. A trigger is anything that sparks an asthma attack. A good example of a trigger is any allergen, such as dust mites, cockroach urinie, molds, fungus. Other triggers are cold weather, stress,...

