Depression has been linked to several eating disorders, although it is not always clear which is the cause of the other. Obesity and depression are thought to be linked, either obesity as a long-term result of depression, or depression as a result of negative body image from obesity. Anorexia and bulimia have also been connected to depression, often as causes of depression.
It isn't called a broken heart for nothing. Numerous studies have found an association between depression and cardiac problems, including arrhythmias, heart attacks, strokes, etc. Some studies have found associations between worsening outcomes in heart disease in patients who develop depression (for example, depression following a heart attack)…