Relaxing water sounds for sleeping | Fall Asleep Water White Noise || Relaxing Rhythm of Nature
It’s true: The sound of nature helps us relax
Playing ‘natural sounds’ affects the bodily systems that control the flight-or-fright and rest-digest autonomic nervous systems, with associated effects in the resting activity of the brain, new research shows.
Researchers at Brighton and Sussex Medical School (BSMS) found that playing ‘natural sounds’ affected the bodily systems that control the flight-or-fright and rest-digest autonomic nervous systems, with associated effects in the resting activity of the brain. While naturalistic sounds and ‘green’ environments have frequently been linked with promoting relaxation and wellbeing, until now there has been no scientific consensus as to how these effects come about
In collaboration with audio visual artist Mark Ware, the team at BSMS conducted an experiment where participants listened to sounds recorded from natural and artificial environments, while their brain activity was measured in an MRI scanner, and their autonomic nervous system activity was monitored via minute changes in heart rate. The team found that activity in the default mode network of the brain (a collection of areas which are active when we are resting) was different depending on the sounds playing in the background:
When listening to natural sounds, the brain connectivity reflected an outward-directed focus of attention; when listening to artificial sounds, the brain connectivity reflected an inward-directed focus of attention, similar to states observed in anxiety, post-traumatic stress disorder and depression. There was also an increase in rest-digest nervous system activity (associated with relaxation of the body) when listening to natural compared with artificial sounds, and better performance in an external attentional monitoring task.
Interestingly, the amount of change in nervous system activity was dependant on the participants’ baseline state: Individuals who showed evidence of the greatest stress before starting the experiment showed the greatest bodily relaxation when listening to natural sounds, while those who were already relaxed in the brain scanner environment showed a slight increase in stress when listening to natural compared with artificial sounds
Story Source: Materials provided by the University of Sussex. Note: Content may be edited for style and length.
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