What does bipolar mean?

what does bi-polar mean?

depression is sometimes called uni-polar = meaning you're down and depressed...at one end of the emotion spectrum...all the time.

bipolar [also known as manic depression] = is when you swop between both ends of the emotions spectrum. you're depressed at one time, then hyper/happy another time.

there's...
bipolar 1: http://www.behavenet.com/capsules/disorders/bip1dis.htm
bipolar 2: http://www.behavenet.com/capsules/disorders/bip2dis.htm
Cyclothymic: http://www.behavenet.com/capsules/disorders/cclthymcdis.htm

I hope this helps.

it means you have extreme high energy sometimes and then you quickly get really down and randomly angry at the world. . . ..

Pretty much what they above two people said. One of the worst things about people with bipolar disorder is they don't know why they are feeling these emotions. I have a friend who suffers from bipolar disorder and she'll just start to cry and get upset with no real reason.