If you are clinically obese, you are 5 times more likely to be hospitalized for asthma than normal weight people.  This study also made some other interesting observations:

Obese people with asthma were younger and less educated than non-obese patients with asthma

Obese people with asthma used more cortico-steroids than non-obese patients with asthma

Obese people with asthma had more incidences of gastro-esophageal reflux disorders than non-obese people with asthma

Bottom line: If a doctor is treating you, he should be more vigilant with your treatment for asthma if you are obese.

If you are of normal weight - you may still be at risk for "normal weight obesity."  We now need to consider the reality that one new definition for obesity may be "excess fat" and not excess weight.  In my book Fat Families Thin Families I write about TOFIs - people who are "Thin Outside Fat Inside" meaning they appear slim but have excess fat around some of their internal organs - a risk factor for many health conditions.  Well, having excess abdominal fat, while still being of normal weight or having large deposits of localized fat, while weighing in at a reasonable weight - can also be a strong risk factor for lifestyle related diseases.

Bottom line: If your weight is OK but you have excess body fat - you do need to exercise more and shift your dietary approach.  You've got to lose that excess fat.

If you have periodontitis, an inflammatory condition of the gums, you may have a strong risk factor for type 2 diabetes and a link with obesity.  Studies now show that peridontitis can accelerate insulin resistance, which is also often found in individuals who are obese. 

Bottom line: Take care of your teeth with routine check ups, regular brushing and flossing AND if you are obese, realize that inflamed, diseased gums can further your risk of diabetes type 2.