Asthma (from the Greek ἅσθμα, ásthma, "panting") is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic).
It is thought to be caused by a combination of genetic and environmental factors. Treatment of acute symptoms is usually with an inhaled short-acting beta-2 agonist (such as salbutamol). Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by inhaling corticosteroids. Leukotriene antagonists are less effective than corticosteroids and thus less preferred.
Its diagnosis is usually made based on the pattern of symptoms and/or response to therapy over time. The prevalence of asthma has increased significantly since the 1970s. As of 2010, 300 million people were affected worldwide. In 2009 asthma caused 250,000 deaths globally.
Asthma is a condition in the airways of your lungs. It tightens your muscles surrounding your air ways and there is swelling plus irritation in your airways called inflammation. It causes to narrow the airways so it feels like your breathing through a straw. The common symptoms of asthma is wheezing, coughing, chest tightness, or hard to breath. If asthma is left untreated it can cause long term loss of lung function. When you are exposed to something or like a trigger your airways become more inflamed or swollen than usual making it even harder to breathe or making your condition even worse. The airways also get tighter and they can get congested due to a build up of mucus.
Some of the triggers can be caused from allergies, infections, and strong odors or fumes that...