Asthma Support Group
Asthma is a disease of the human respiratory system where the airways narrow, often in response to a "trigger" such as exposure to an allergen, cold air, exercise, or emotional stress. This airway narrowing causes symptoms such as wheezing, shortness of breath, chest tightness, and coughing, which respond to bronchodilators.
I'm usually in my yellow zone also, but what I find strange, is that sometimes I can get a reading in my green zone eventhough I am short of breath and wheezing. I don't understand how that can happen.
I hope our coughs end soon:)