<p>Being obese is just plain unhealthy. All that excess fat can make outcomes worse for patients with any of a number of diseases, including rheumatoid arthritis.</p><p>A recent study showed that morbidly obese patients with inflammatory polyarthritis - which includes diseases like rheumatoid arthritis - had higher levels of disability than arthritis patients who were not obese. Morbidly obese patients had about twice the odds of disability compared to those who were not obese</p>