Asthma, a disease of the human respiratory system, which narrows the airway, generally in response to a “trigger” such as exposure to allergens, exercise, cold air, or emotional stress. This narrowing can cause symptoms such as breathlessness, wheezing, chest tightness, and coughing. Between asthmatic episodes, most people with the condition feel fine.
This disease is a chronic inflammatory condition wher Airways develop increased response to certain stimuli, as evidenced by bronchial hyper-responsiveness, increased mucus production, inflammation, and intermittent airway obstruction. asthma [http://www.asthmaarea.com] can be anywhere from mild to life threatening, but can generally be managed with a combination of drugs, inhaled and changes in lifestyle. People have focused on asthma recently due to the rapidly increasing number of patients, affecting up to one in four urban children. Genetic factors may contribute to asthma cases, but there is no clear pattern of inheritance found. It is a very complex disease that is influenced by many different developmental, genetic and environmental factors that work togetherto create widespread condition.
feeding children have proven less susceptible to asthma. Current studies indicate that the prevalence of asthma in children has increased. According to the Centers for Disease Control and the National Health Interview Surveys prevention is, 9.2% of US children under age 18 had asthma in 2001, compared to 4% in 1980. The World Health Organization (WHO) says that 8% residents of Switzerland suffer from asthma today, compared to 1.9% in 1983. Asthma is more common in countries outside North America, but is not a problem confined to the place. “WHO” estimates that there are between 15.3 and 20.1 million asthmatics in India. In the US, the urban population, African Americans and Hispanics affected so than the nation as a whole.
Around the world, asthma is the cause of 175,000 deaths per year. Asthma and Asthma Athletic seem to be more common in athletes than in the general population. One particular survey of participants in the 1996 Summer Olympic Games revealed that 16% had asthma, and 10% were on medication for asthma. There seems to be a large number of asthmatics in sports like mountain biking, cycling and long-distance running, and a somewhat low percentage in weightlifting. It is not clear how much of these cases are results of the effects of training in the sport.