With the sound of the rain, a kind of camouflage is achieved.
The brain is offered a stimulus that creates a sense of control, a repetitive pattern that convinces it of the absence of external threats.
The sound of running water, such as a stream, rain, or the sea breaking on rocks, is relaxing.
More and more studies show that the sound of water has a relaxing effect on people.
It stimulates the brain and seems to have a positive effect on memory.