Explain in brief about the diseases Sleep paralysis
This is an episode of paralysis in the transition between wakefulness and sleep. The period of paralysis is usually brief but can last as long as 20 minutes. Sleep paralysis has been experienced by half of all people, if classroom surveys are a true indication of its frequency. In contrast with cataplexy, the paralysed person can be easily aroused by being touched or called by name and, if experienced with the attacks, can terminate them by grunting or using some other strategy that shakes off the sleep. What appears to happen in sleep paralysis is that the person wakes up but is still in the state of paralysis associated with dream sleep.