ISAAC studies have commonly used age groups of 6-7 years and 13-14 years for describing the burden, why were other age groups not taken into account ? Is there any scientific justification for that? Some studies have also used age groups of 3-7 years, 8-14 years and 15-17 years to find out the difference in prevalence using ISAAC questionnaire as study tool.

In Asthma the system is filled with waste matter and mucus. Asthma is characterized by labored
breathing (dyspnea), wheezing with dry and painful coughing which is often due to an extreme
irritation of the mucous membranes in the nasal passages or bronchial tubes. The symptoms are
accompanied by constriction of the chest (bronchiolar spasm) and expectoration of mucus
(mucoid sputum). Acute Asthma can be controled with centain types of home made remedies.