Medical researchers still do not know what causes these symptoms, but they suspect a Sravnutu lack of oxygen in the brain. Narcolepsy is so little known that it is often misdiagnosed. In a recent medical journal report, not one of the 105 cases described was diagnosed correctly at first. Once narcolepsy is diagnosed drugs can make the drowsy victim a safe driver and even a happier person. The sleepy housewife mentioned earlier describes a trip she took just after being placed on medication: "I drove 80 miles on the trip home without getting the least bit sleepy. I only dozed once while my husband was driving and then I awoke alert. Of all the dozens of trips we have taken this trip home was the first time I have ever looked at a farm scene or cornfield to realize how interesting they are."