article_snippet.sent: Moving around in sleep, and seeming to 'act out' dreams is a characteristic of a condition called rapid eye movement sleep behaviour disorder (RBD).
article_snippet.sent: People with rapid eye movement sleep behaviour disorder (RBD) move around in People with rapid eye movement sleep and 'act out' People with rapid eye movement dreams.
article_snippet.sent: People with RBD describe having vivid dreams, and People with RBD act People with RBD out theatrically while asleep.
article_snippet.sent: People with RBD can be fighting enemies, or fleeing danger, and actually act out these dreams in People with RBD beds.
article_snippet.sent: People with RBD move around during the rapid eye movement period of sleep, when most dreaming occurs but the body's muscles are usually paralysed by the brain stem.
article_snippet.sent: Those with the condition are believed to have a malfunction in Those with the condition brain-stem which allows Those with the condition to move around during REM sleep, and therefore act out Those with the condition dreams.
article_snippet.sent: For most people, dreaming is purely a 'mental' activity: dreams occur in the mind while the body is at rest.
article_snippet.sent: But people who suffer from REM behavior disorder (RBD) act out people who suffer from REM behavior disorder (RBD) dreams.
article_snippet.sent: people who suffer from REM behavior disorder (RBD) physically move limbs or even get up and engage in activities associated with waking.
article_snippet.sent: RBD is usually noticed when RBD causes danger to the sleeping person, their bed partner, or others their encounter.
article_snippet.sent: People with RBD move around during the rapid eye movement period of sleep, when most dreaming occurs but the body's muscles are usually paralysed by the brain stem.
article_snippet.sent: Those with the condition are believed to have a malfunction in Those with the condition brain-stem which allows Those with the condition to move around during REM sleep, and therefore act out Those with the condition dreams.
article_snippet.sent: It is a different condition from sleepwalking, Professor Howell explained, as sleepwalkers are confused when they wake up.
article_snippet.sent: It is normally easy to awaken someone with RBD, and they will recall clear details of the vivid dream.
highlights_snippet.sent: Sleep disorder occurs due to a brain malfunction  - meaning the brain doesn't paralyse the body's muscles during the period of sleep when people dream .