Acting out dreams in sleep may signal RBD: Signs, Parkinson’s link and treatment | Exclusive
New Delhi: Shouting, punching or kicking in sleep may look like a bad dream, but repeated episodes can point to REM sleep behaviour disorder (RBD), a condition in which a person physically acts out dreams. It is often seen in older adults and, in some cases, appears years before neurological conditions such as Parkinson’s disease and dementia.
In an exclusive communication to News9 Digital, Dr BK Madhusudhan, Lead Consultant, Neurology, Aster RV Hospital, Bangalore, explains what RBD is, its warning signs, why it affects older adults, how a sleep study diagnoses it, and the treatment and home safety steps that help. Read here.
REM sleep behaviour disorder: What older adults should know
Q: What is REM sleep behaviour disorder?
Dr BK Madhusudhan: REM sleep behaviour disorder (RBD) is a sleep condition in which a person physically acts out their dreams while sleeping. Normally, during Rapid Eye Movement (REM) sleep, the brain temporarily prevents most muscles from moving, even when we dream. In people with RBD, this natural muscle relaxation is lost, allowing them to move, shout, punch, kick or even jump out of bed while dreaming.
Q: How does it differ from sleep talking, sleepwalking or restless sleep?
Dr BK Madhusudhan: Unlike ordinary sleep talking or restless sleep, these movements are often linked to vivid dreams. Sleepwalking usually occurs during non-REM sleep, while RBD specifically occurs during REM sleep.
Q: What warning signs should family members and bed partners watch for?
Dr BK Madhusudhan: Family members should watch for repeated shouting, screaming, punching, kicking, grabbing, sudden arm movements or falling out of bed during sleep. Some people may appear to fight, run or defend themselves against someone in their dreams. They may wake up remembering vivid dreams that match their physical movements. These episodes can sometimes cause injuries to the person or their sleeping partner.
Q: When does acting out dreams need medical evaluation?
Dr BK Madhusudhan: Occasional movements during sleep do not necessarily indicate a disorder. However, repeated episodes, particularly in older adults, should not be ignored. Anyone experiencing such symptoms should consult a neurologist or sleep medicine specialist for proper evaluation and diagnosis.
Q: Why is the condition more common in older adults?
Dr BK Madhusudhan: REM sleep behaviour disorder is more commonly identified in older adults because changes in the brain’s sleep-regulating pathways can occur with ageing and certain neurological conditions.
Q: How is it linked with neurological conditions such as Parkinson’s disease and dementia?
Dr BK Madhusudhan: The disorder is particularly important because it can sometimes appear years before symptoms of neurodegenerative diseases become noticeable. Research has established an association between isolated RBD and conditions such as Parkinson’s disease, dementia with Lewy bodies and multiple system atrophy. These conditions affect brain cells involved in movement, behaviour and other functions. However, having RBD does not mean that a person will definitely develop Parkinson’s disease or dementia. Regular neurological assessment and follow-up are important.
Q: How is it diagnosed, and what is the role of a sleep study?
Dr BK Madhusudhan: REM sleep behaviour disorder is diagnosed through a detailed medical history, sleep-related observations and an overnight sleep study called video polysomnography. During this test, brain activity, eye movements, muscle activity, breathing and physical movements are recorded while the person sleeps. A key finding is the absence of normal muscle relaxation during REM sleep, known as REM sleep without atonia. Video recordings also help doctors identify unusual movements associated with dream activity.
Q: Which specialist should a patient consult?
Dr BK Madhusudhan: Patients should consult a neurologist or sleep medicine specialist, particularly one experienced in movement disorders. The doctor may also review medications and investigate possible underlying neurological conditions.
Q: What treatment options are available?
Dr BK Madhusudhan: Treatment depends on the severity of symptoms and the patient’s overall health. Doctors may prescribe melatonin or clonazepam to reduce dream-enactment episodes, depending on individual circumstances. Certain medications may also trigger or worsen symptoms, so a medical review is important.
Q: What safety steps can families take at home to prevent injuries to the sleeper and the partner?
Dr BK Madhusudhan: Safety measures at home are equally essential. Families should remove sharp objects, glass furniture and other dangerous items near the bed. Placing soft mats beside the bed, lowering the bed height and securing windows can reduce injury risks. Couples may temporarily sleep separately if episodes are severe. Regular follow-up helps monitor symptoms and identify possible neurological changes early.
Disclaimer: This article is based on the research and inputs shared by the doctor mentioned above and is intended for informational purposes only. The findings should not be considered medical advice or used for self-diagnosis or treatment. Consult a qualified healthcare professional for personalised guidance.