A little known sleep disorder that affects two per cent of people over 65 could foreshadow the likeliness of developing brain diseases such as Parkinson’s disease and dementia.
The disorder known as REM sleep behaviour disorder, or RBD, affects around one per cent of the general population.
REM stands for rapid eye movement which is one of the stages of the sleep cycle. It plays an important role in dreaming, memory, emotional processing, and healthy brain development.
