‘Manic depressive psychosis’ which was first defined at the end of the 1800’s, and can be described as a psychological disorder in which episodes of mania and episodes of depression occur at different times in the same patient. Except for these periods the person is entirely healthy.
It is also known as Manic Depressive Psychosis or Bipolar Affective Disorder. It is characterised by periods of depression that occur from time to time, and at the other end periods of mood elevation. The depressive state displays the characteristics I explained in my article called Depression. Mania presents a picture of increased self-confidence, increased libido, accelerated associations, increased motor activities, excessive energy, lack of sleep without tiredness the next morning, lack of appetite, passion for shopping, excessive travelling, rejoicing without any reason.