Pink noise is what’s called a “broadband noise,” meaning sounds made up of a wide range of frequencies. The most well-known example of this, white noise, is considered the sound equivalent of the color white, which contains all colors combined. Pink noise, for example, emphasizes lower frequencies — making it sound similar to steady rainfall or ocean waves. It’s often used for sleep, although uses for focus and tinnitus have also been reported. These types of background noise can mask unwanted sounds — an appealing quality in an increasingly noisy world. Since the first white noise machine for sleep was released in the 1960s, hundreds of variations have spawned. Today, 10-hour videos of pink noise, which is often preferred over white noise for sleep due to its softer sound, pick up millions of views on YouTube. That led him down a rabbit hole of research, where he found dozens of studies assessing the effects of broadband noise on sleep. However, most of them were considered to be low quality — sample sizes were small and the assessments were usually subjective. This allowed his team to differentiate sleep stages and figure out what was happening biologically as participants were exposed to a variety of conditions: no noise, environmental noise, pink noise, pink noise and environmental noise combined, or environmental noise with ear plugs
Thank you for reading this post, don't forget to subscribe!Pink Noise A Popular Sleep Aid Could Disrupt Sleep Quality Study Suggests
