what are some controllable risk factors for asthma?
['Family history. If you have a parent with asthma, you are three to six times more likely to develop asthma than someone who does not have a parent with asthma.', 'Viral respiratory infections. ... ', 'Allergies. ... ', 'Occupational exposures. ... ', 'Smoking. ... ', 'Air Pollution. ... ', 'Obesity.']