CBS 2 News in Los Angeles reports on REM sleep behavior disorder, or RBD. Note: Parents should be aware that the video on the CBS Web site may not be appropriate for children.
People who have RBD act out vivid dreams and nightmares as they sleep. The dreams tend to be action-packed. The dreamer may punch, kick, jump or get out of bed and run. All of this occurs while he or she is still asleep.
Injuries are common. Cuts, bruises or broken bones may occur to the dreamer or to a bedpartner.
"It is violent, moving nightmares,” Dr. Carlos Schenck told CBS. “It is what happens during sleep, and they end up hurting themselves or bed partners."
Schenck and colleague Dr. Mark Mahowald first identified RBD, reporting on it in the journal Sleep in 1986. Sixteen years later they filed a follow-up report.
Schenck also is executive producer of the documentary Sleep Runners. It tells the true stories of people who suffer from RBD and other parasomnias.
Contact an AASM-accredited sleep center if you or someone you know acts out dreams during sleep.