Bipolar disorder, formerly called manic depression, is a mental health condition that causes extreme mood swings that include emotional highs (mania or hypomania) and lows (depression).
Substance abuse usually can’t cause bipolar disorder by itself.” “Although abusing substances can exacerbate symptoms and make it more difficult to diagnose and treat. It is thus imperative that patients with bipolar disorder stay away from drug use.”
The exact cause of bipolar disorder isn’t known, but a combination of genetics, environment, brain structure and diet may play a role.