There is no single identified cause of bipolar disorder. Bipolar Disorder is influenced by a number of factors, including genetics, chronic illness, brain chemistry and life experiences. Symptoms may vary from person to person.
I'm a bit outside of my area of expertise here. I'm going to try to explain the workings of the brain from a woman's perspective. Here goes: Your hot date is due to show up in five minutes. On your last date, he transported you into realms you never knew existed, and your dopamine has been firing red hot ever since. Dopamine is the…