Curie is responsible for establishing the theory of radioactivity, but unfortunately she unwittingly also discovered the fatal effect radioactivity can have on your health; she died on July 4, 1934, of aplastic anemia caused by radiation exposure. Related topics: MNN lists, Science.
Symptoms of narcolepsy. The hallmark symptom of narcolepsy is excessive daytime sleepiness (EDS). Additional symptoms may include cataplexy, hypnagogic hallucinations, and sleep paralysis. In most cases, excessive daytime sleepiness is the first sign of narcolepsy. This can have a significant impact on everyday life.
Persistent daytime sleepiness occurs in all people with narcolepsy. Narcolepsy can also cause cataplexy, brief episodes of muscle weakness triggered by strong emotions. In addition, narcolepsy can cause fragmented sleep with vivid dreams, and hallucinations and brief paralysis when dozing off or waking up. These symptoms typically begin between ages 10 and 20.