Clinical physiologist says unpleasant dreams are 'a natural response'

Clinical physiologist says unpleasant dreams are 'a natural response' View 3 Images

Environmental cues like light and noise are just two of many factors that can impact the duration and quality of your slumber, but did you know that even a single night of bad sleep can alter your brain chemistry? Sleep is an important pillar of our physical and mental health, and inadequate rest can negatively impact our day-to-day cognitive functioning in a multitude of ways.

“As we sleep, our brain moves through different stages of sleep called NREM (non-rapid eye movement) and REM (rapid eye movement) on a cycle of roughly 90-110 minutes in adults, with NREM split into lighter and deeper stages,” explains Dr Lizzie Hill, clinical physiologist and senior lecturer in sleep physiology at University of