Asthma Specialist Clinics
Asthma is a common inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm.Symptoms include episodes of wheezing, coughing, chest tightness, and breathlessness. These episodes may occur a few times a day or a few times per week. Depending on the person, they may become worse at night or with exercise.
Asthma is caused by a combination of complex and incompletely understood environmental and genetic interactions. These factors influence both its severity and its responsiveness to treatment It is believed that the recent increased rates of asthma are due to changing epigenetics (heritable factors other than those related to the DNA sequence) and a changing living environment.
Onset before age is more likely due to genetic influence, while onset-after Asthma is characterized by recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing. Sputum may be produced from the lung by coughing but is often hard to bring During recovery from an attack, it may appear pus-like due to high levels of white blood cells called eosinophils.Symptoms are usually worse at night and in the early morning or in response to exercise or cold air Some people with asthma rarely experience symptoms, usually in response to triggers, whereas others may have marked and persistent symptoms.