Bipolar disorder, formerly referred to as bipolar disorder, may be a mental state condition that causes extreme mood swings that embrace emotional highs (mania or hypomania) and lows (depression).
When you become depressed, you will feel unhappy or hopeless and lose interest or pleasure in most activities.
When your mood shifts to mania or hypomania (less extreme than mania), you will feel happy, filled with energy or remarkably irritable.
These mood swings will have an effect on sleep, energy, activity, judgment, behavior and therefore the ability to suppose clearly.