... types that receive the most attention from medical establishments are, Major unipolar depression, Major endogenous depression, Bipolar disorder (manic depression), and dysthemia (minor depression). Major Unipolar depression leaves an individual lethargic, and filled with an overwhelming sense of despair for at least eighteen months. Endogenous depression deals with insomnia, lethargy, slowing of mental and physical activity, and occurs most frequently in ... ...

• Word Count: 951
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

... extra dopamine is the cause of the high which cocaine users seek. After having used cocaine, however, users feel the opposite effects of its high; they feel depressed and extremely lethargic. The interaction between dopamine and the sensory perception functions of the brain can also cause cocaine users to experience hallucinations and paranoia, which are common symptoms of schizophrenia. Schizophrenia is ... ...

• Word Count: 653
• Approx Pages: 3
• Has Bibliography
• Grade Level: Undergraduate