Two new studies have revealed that patients struggling with chronic obstructive pulmonary disorder (COPD) may have an increased risk for developing depression. The first study followed COPD patients over a three-year period and found one in four participants reported persistent depressive symptoms. The second study found that 22% of Medicare patients with COPD had one or more psychological disorders. An expert not involved in the study, Dr. David Mannino, explains that depression makes it difficult for those with COPD to adhere to needed therapies, especially since they tend to blame themselves for developing the disease by smoking. CHEST, April 2016