Asthma - Definition, Cause and Triggering Factors

What is it and who gets it? Asthma is a conditionhard for air to get in and out of the lungs. This leads to
whereby the smaller airways of the lungs constrict (orsymptoms like wheezing, breathless, chest tightness
narrow) from time to time, causing typical symptoms.and a cough. Not only that, the inflammation also
The duration and extent of narrowing vary and theystimulates the airway to pump out extra mucus, which
determine the degree of severity of the disease.causes the airway to obstruct further.What are the
Asthma affects people of all ages, however, it tendsexacerbating factors of asthma or what can make it
to starts in childhood and runs in family. Having saidworse? Asthma symptoms may be triggered by
that, certain asthma sufferers have no familycertain factors. Occasionally, we do not know why it
members who have asthma.What are the symptomsbecomes worse. It is possible to avoid certain triggers
of asthma? Typical symptoms are a cough, wheezing,to help to reduce symptoms. Identifiable triggers
chest tightness and shortness of breath. The severityinclude:Exercise. Exercise is a known trigger for
of asthma can usually be classified according to theasthma. Having said that, you should not refrain
degree of symptoms. Each episode of symptomsyourself from doing sports and exercises. They are
may last from a hour to several days if left untreated.actually good for your asthma. It is possible to prevent
Death is a known but uncommon cause of severeasthma symptoms while exercising by using an inhaler
untreated asthma.Symptoms of mild asthma: Episodesbefore you exercise.Pollen and moulds. This is
of symptoms only during exercise or triggered by aparticular evident during season of hay fever.Infection.
chest or an upper respiratory infection. You are usuallyViral respiratory tract infections like flu or common cold
symptom- free between episodes.Symptoms ofare common triggers.Smoking and air pollution.Some
moderate asthma: You display symptoms from time tomedicine. Certain medicines are known to constrict
time. Symptoms tend to be worst at night and early insmaller airways in the lungs, they include aspirin,
the morning. You may be awakened at night with abeta-blockers and some eye drops for
tight chest and coughing.Symptoms of severe asthma:glaucoma.House dust mites.Some food. We do not
You have symptoms on most days. You may find itknow why certain food can bring up symptoms of
hard to talk. Frequent hospitalization for asthma is alsoasthma. Food like nuts, eggs and fish can sometimes
one of the criteria for severe asthma.What causestrigger off an asthma attack in people who have
asthma? Asthma occurs as a result of inflammation inknown asthma. However, this is not a common
the lower, smaller airways. No one is entirely sure whytrigger.Emotion. Asthma has nothing to do with your
the inflammation occurs. As a consequence of the'nerve'. However, certain emotions like stress, laughing,
inflammation, the sensitive airway constricts, making itanxiety can all cause symptoms of asthma.