Asthma is a common long term inflammatory disease of the airways of lungs. Asthma is thought to be caused by combination of genetic and enviormental factors. The enviormental factors can be change of weather, pollen, extreme cold etc. If you are not protecting yourself enough from the heat wave, you could be at a risk of developing serious respiratory diseases, such as asthma. Experts say soaring temperatures coupled with rising pollution levels in cities could cause an increase in the number of asthma cases.Studies of 2003 says 243 million people have asthma.
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