Bipolar disorder (also called manic depression) is a mental disorder marked by unusual shifts in mood, energy, and activity levels. Symptoms are usually intense and differ from the normal ups and downs of life.
Those with bipolar experience emotional states stronger than their usual states. These can last during specific periods, called “mood episodes.” When the episodes are excited, they’re manic. When they’re depressed, they’re depressive. Sometimes, people may show parts of both moods or have a “mixed state”.
Bipolar is further classified as type I and type II. Type I doesn’t typically include major depressive episodes (although one can still have depression symptoms), whereas Type II has at least one major depressive episode lasting 2 weeks and one of hypomania that lasts at least 4 days.
Drastic changes in mood, energy, and behavioural states may show up in episodes: