This disease is a chronic inflammatory condition wherin the airways develop an increased responsiveness to certain stimuli, shown by bronchial hyper-responsiveness, increased mucus production, inflammation, and intermittent airway obstruction. can be anywhere from mild to life threatening, but can generally be controlled with a combination of drugs, inhalers and changes in lifestyle. People have focused on asthma recently because of its rapidly increasing number of patients, affecting up to one in four urban children. Genetic factors can contribute to cases of asthma, but there is no clear pattern of inheritance found. It is a very complex disease which is influenced by many various developmental, genetic, and environmental factors, which work togetherto create the widespread condition.