Part 1 of Essay
is a serious, life-long, potentially disabling disorder estimated to afflict more than 250,000 Americans, most of whom are undiagnosed. It was once believed that was a psychological problem with a psychological cause; however, considerable research has demonstrated that this theory is not true. is now considered a neuro ....

Part 2 of Essay
.... at a gradual rate over a period of years. Excessive Daytime Sleepiness (EDS) and Cataplexy are the two primary symptoms of . Other symptoms include Disrupted Nighttime Sleep, Sleep Paralysis, Hypnagogic Hallucinations, and Automatic Behavior . However, only 20 to 25 percent of patients suffer the complete range of symptoms. EDS is usually the first symptom to be noted. It is sometimes expressed as sleepiness, tiredness, lack of energy, sleep attacks, or an unusual susceptibility to becoming sleepy or fallin ....