So it is important to be familiar with the warning signs of depression.
Fluctuations Between Mania and Depression
Bipolar disorder is a disease — it is a medical condition that causes psychological problems to such a degree that daily functioning is hampered by the symptoms. The most predominant symptoms come together into episodes that are extremes of mood known as mania and depression. These extremes of mood are well beyond the normal mood fluctuations all people experience and are not proportional responses to life events.