Sleep Disturbances
The term "sleep disturbances" covers several sleep-related disorders, including insomnia, narcolepsy, sleep apnea, nocturnal myoclonus (periodic leg or arms jerks during sleep), and parasomnia (i.e., night terrors, sleepwalking or talking, and nightmares). Sleep disturbances are caused, in part, by overstimulation of the brain. However, some people can't get a good night's sleep simply because they think obsessively about the game they're playing.