Not to be underestimated...
Bipolar disorder is a very serious, misunderstood and as indicated in previous posts, often life-threatening disease of the mind. It is frequently characterized by self-denial (see above post H_B for example) paired with an aggressive refusal to accept medication. Bipolar sufferers should not be permitted to hold crew licenses of any type after being so diagnosed. Why? Because their actions when manic are unpredictable, self-destructive and irrational. When medicated they become desultory and lethargic. Both patterns which should prohibit sufferers from getting close to any cockpit.