I don't believe there is any proof or evidence to suggest that he was bipolar. Mozart was a prolific genius and an alcoholic, both of which tend to add up to a pretty strange and unstable personality. But, bipolar? I've never heard any convincing evidence to suggest that.
There is evidence to suggest that Mozart may have experienced symptoms of bipolar disorder, such as mood swings and impulsivity, but a definitive diagnosis cannot be made as he lived before modern psychiatric understanding.
One can find information on what causes bipolar disorder in humans by using websites such as Wikipedia or NIHM that tells you everything you need to know about bipolar disorder and how it is caused in humans.
Doctors think that bipolar disorder is caused by stress. Others believe that it's a mental illness that you can treat with medicine.
Bipolar disorder
Bipolar disorder is generally caused by genetics.
Worrying or focusing intensely on things is apart of Bipolar disorder. Its as if you worry about thing that you know you shouldn't and can't help imagining something bad happening.
The correct term is bipolar disorder. Some people call it a disease though.
a disorder
http://blogs.psychcentral.com/bipolar/2009/01/bipolar-disorder-qa-how-close-are-we-to-a-bipolar-cure/
Yes, stress makes Bipolar Disorder behavior worse. My daughter is Bipolar.
It's not known to be an effective treatment for bipolar disorder.
Oppositional defiance disorder is something one grows out of unlike bipolar disorder which is permanent. Bipolar disorder is accompanied by mood swings being on top of the world one moments and in despair the next and these moods can last for weeks without signs of improvement. There are other symptoms as well that can help a parent distinguish whether or that is the case. Bipolar disorder is very difficult to live with and should be diagnosed as soon as possible. The book 'the bipolar child' will tell you what you need to know.