My BMI is 20.8. I used to work with this woman who was 35 and hooked up to an oxygen tank that she carried around because her asthma was so bad. She was also obese, didn't exercise, smoked, and ate horribly (chicken pot pie and corn dogs for breakfast). She was apple shaped I guess you would say. I think that discrediting waist size and saying heredity is the only factor is just foolish. It makes sense that a fat person would have asthma.