Extreme Obsession is a term used to describe an intense and irrational preoccupation with something or someone. MANIA, which is a five letter word, is a type of extreme obsession that is characterized by an abnormally elevated mood, energy, and activity level. It is often accompanied by feelings of euphoria, grandiosity, and impulsivity. MANIA can be a symptom of bipolar disorder, but it can also occur in people without the disorder.