![]() In a 2018 study published in Frontiers in Psychology, brown noise was also shown to support the transition into REM sleep for some. Opt for brown noise, however, if those sounds are a bit lower in pitch. Similar to white and pink noise, brown noise is useful for masking distracting sounds. This pattern further dampens higher frequencies to create a deeper, rumbling sound that mimics distant thunder, a waterfall or the inside of a plane cabin while in flight. Read More: Research Shows Promising Effects of Music on Brain Powerīrown noise spectrum (Credit: Warrakkk/CC BY-SA 3.0/Wikimedia Commons)īrown noise - technically named Brownian noise after the Scottish botanist who discovered the random movements characteristic of Brownian motion - takes us one step beyond pink nose. Other studies have shown it can be useful for relaxation and tinnitus, and various researchers have also experimented with using pink noise to help our brains better catalog memories during deep sleep - though more research is necessary to confirm whether this is the case for all or even most people. ![]() ![]() Compared to those who slept without it, the researchers found evidence of deeper sleep, less complex brain waves and fewer responses to potential sleep disruptions. In 2012, a team of researchers based in China analyzed the brain waves of 40 sleeping subjects while they listened to pink noise. ![]() Basically, it accounts for our natural sensitivity to those frequencies.Īs a result, pink noise mimics the calming sound of steady rainfall - or even the sounds inside a womb. Pink noise is considered a more balanced listening experience compared to white noise because it dampens the volume of the higher frequencies on the sound spectrum. Pink noise spectrum (Credit: Warrakkk/CC BY-SA 3.0/Wikimedia Commons) And various studies have shown that it’s a great way to manage distractions. Perhaps unsurprisingly, white noise is the most studied of all the different colors. But because all these frequencies are played in fast, random succession, our brains combine them in a Frankenstein-esque way that ultimately mimics TV or radio static. Just as white light contains every color of the rainbow, white noise contains every frequency that we can hear - from around 20 to 20,000 hertz. Higher frequencies sound higher-pitched to the human ear, and lower frequencies sound lower-pitched. The way we perceive different types of noise depends on the frequency of their sound waves, or the number of times the sound waves repeat per second. Here are some other ways incorporating white noise or its analogues into your schedule might be helpful. Whether or not this routine involves a noise machine, carrying out the same tasks prior to hitting the hay every night helps your brain recognize when it’s time to rest. Well, one possible way white noise and other sounds can help you fall asleep is if you make them a staple in your nighttime routine. Could this be a classic case of the placebo effect? If it must also analyze the calming sounds of white or pink noise, will the brain be working overtime? Benefits of Soothing Sleep SoundsĪnd yet hundreds of millions of TikTok videos claim the sonic hues are a boon to our sleep schedules and overall mental health. For one, some people may find that the added noise simply disrupts their sleep.Īnother worry is that sleep is an important time for the brain it must work to repair the body and improve our immune system during this time. In fact, some of the studies from the review argue that continuously listening to sounds all night can be harmful. A 2021 review of 38 different studies, carried out by researchers at the University of Pennsylvania, found little evidence that white noise improves sleep. Despite how frequently their benefits are touted, there’s not a lot of actual research on how noise colors impact things like sleep, anxiety and focus.
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