Emo: What makes different?

Emo: What makes different?
What is E.M.O?
Is it caught on the word EMOTIONAL?
Or we simply just define it as a person hopeless, unhappy, heartbroken person that’s why is it called emotional? Emo people with short hair, they are addicted on rock music. The popular style of clothing focuses on dark colors. And the common accessory for men and women is a thick eye shadow. Commonly they have colored hair, a style that’s what make different. Some of the people may misunderstand them, the act of rebelling on something, but definitely we really don’t know what they are trying to say, which often speak of acts of self-destruction.
Are they switching for being emo just because of, painful experiences, anger inspiring events, or any other kind of emotion? Or simply just trying to catch experience or something?
Think…..