what is Bipolar and how does it start and develop?

Question

is there a difference between it and mood swings?

Answer 1

Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in a person's mood, energy, and ability to function. Different from the normal ups and downs that everyone goes through, the symptoms of bipolar disorder are severe. They can result in damaged relationships, poor job or school performance, and even suicide.
http://www.nimh.nih.gov/publicat/bipolar.cfm#intro


Bipolar disorder causes dramatic mood swings—from overly "high" and/or irritable to sad and hopeless, and then back again, often with periods of normal mood in between. Severe changes in energy and behavior go along with these changes in mood. The periods of highs and lows are called episodes of mania and depression.
Signs and symptoms of mania (or a manic episode) include:

* Increased energy, activity, and restlessness
* Excessively "high," overly good, euphoric mood
* Extreme irritability
* Racing thoughts and talking very fast, jumping from one idea to another
* Distractibility, can't concentrate well
* Little sleep needed
* Unrealistic beliefs in one's abilities and powers
* Poor judgment
* Spending sprees
* A lasting period of behavior that is different from usual
* Increased sexual drive
* Abuse of drugs, particularly cocaine, alcohol, and sleeping medications
* Provocative, intrusive, or aggressive behavior
* Denial that anything is wrong

A manic episode is diagnosed if elevated mood occurs with three or more of the other symptoms most of the day, nearly every day, for 1 week or longer. If the mood is irritable, four additional symptoms must be present.
Signs and symptoms of depression (or a depressive episode) include:

* Lasting sad, anxious, or empty mood
* Feelings of hopelessness or pessimism
* Feelings of guilt, worthlessness, or helplessness
* Loss of interest or pleasure in activities once enjoyed, including sex
* Decreased energy, a feeling of fatigue or of being "slowed down"
* Difficulty concentrating, remembering, making decisions
* Restlessness or irritability
* Sleeping too much, or can't sleep
* Change in appetite and/or unintended weight loss or gain
* Chronic pain or other persistent bodily symptoms that are not caused by physical illness or injury
* Thoughts of death or suicide, or suicide attempts

A depressive episode is diagnosed if five or more of these symptoms last most of the day, nearly every day, for a period of 2 weeks or longer.
http://www.nimh.nih.gov/publicat/bipolar.cfm#bp1

Answer 2

Bipolar disorder is a disorder of DRAMATIC mood swings, not the everyday ones that most of us experience. The person can be in the depths of despair and depression for days on end and then experience euphoria, energy, hyperactivity for weeks. The transition times between the phases can vary in length. It is generally caused by a chemical imbalance in the brain and is usually well controlled with medications, although it might take some time and experimentation (under physician care) to find the right one(s).