Noises, depending on the energy of the sound signal they emit, are identified by colors.
So there’s white noise, brown, as well as pink. In this text, we will see the benefits offered by the latter type.
First, we should mention that pink noise reduces the higher frequencies of the sound and emphasizes the lower ones, giving the impression that it is a long and low hum. Some typical examples of pink noise can be found in nature: waterfalls, rivers, strong winds, heavy rainfall, rustling of leaves.
The sound of pink noise offers benefits to listeners because it penetrates the brain, facilitating slower brain wave activity, thereby contributing significantly to stage 3 sleep (there are four stages in total) which is the deepest. During this stage, muscle tone, pulse and breathing rate decrease as the body relaxes even more.
This stage is important because it contributes to physical recovery and growth while additionally strengthening the immune system. Also, although brain activity is reduced, there is evidence that deep sleep contributes to insightful thinking, creativity and memory.
Thus, there are not a few studies showing that pink noise can help people fall asleep faster and easier and thus achieve better sleep quality. In addition, it offers relaxation and calmness, helping the mental health of each person.
It is no coincidence, then, that pink noise significantly helps people who are stressed, suffer from insomnia – possibly due to overstimulation – or have irregular work schedules, resulting in low energy and irritability.
Also, related sound studies showed that patients in hospitals fell asleep 40% faster when exposed to pink noise.
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