Biopolar disorder

A Long-Term Illness That Can Be Effectively Treated
Even though episodes of mania and depression naturally come and go, it is important to understand that bipolar disorder is a long-term illness that currently has no cure. Staying on treatment, even during well times, can help keep the disease under control and reduce the chance of having recurrent, worsening episodes.

What Are the Symptoms of Bipolar Disorder?
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.

Diagnosis:

Mood Disorder - Mixed Episode Symptoms
A mixed episode is not a disorder, but rather a part of a mental disorder, most commonly bipolar disorder. It consists of meeting the criteria for both a manic episode as well as a major depressive episode nearly every day for at least a full week.