Bi-Polar disorder is basically the dramatic effects of high and low moodswings. These mood swings often do not follow a pattern.These episodes can happen over a week a month or even a year. The highs often consist of being overly excited, happy, or hopeful over either something minor or major. The opposite, otherwise known as the lows often consists of sadness, depression, feeling of hopelessness, loss of energy. Bi-Polar Disorder can be caused by genetics too.