Pink noise — a more natural-sounding mix of high and low frequencies — is getting buzz as research suggests it supports deeper sleep and better memory, according to Moneyish.
Dr. Roneil Malkani, assistant professor of neurology at Northwestern University, told Moneyish that we assign colors to sound the same way that we do with light. So white noise is a combination of all the other sound waves (violet, blue, white, pink and brown/red) the same way white light is made up of all the colors of the rainbow.
“When all of those various sound frequencies are equally represented, you get white noise,” he explained, which is why it makes a constant static or “shhhh” sound.
But pink noise is all about that bass.