Substance abuse is very common among people with bipolar disorder.
Anxiety disorders, such as post-traumatic stress disorder (PTSD) and social phobia.
Bipolar disorders also place people at higher risk for thyroid disease, migraine headaches, heart disease, diabetes, obesity, and other physical illnesses. The association with physical illnesses is due to a number of factors. Bipolar patients are less likely to receive medical care than people without the disease. Substance abuse in bipolar patients is another cause. A number of complications are side effects of the medications. Diabetes and thyroid disease are typical examples. Genetic links are also thought to connect diabetes and bipolar disorder.