A while back I wrote about how pink noise was helping me sleep.
Turns out, I was wrong… about how much of a good effect it can have.
A study published in the European Heart Journal revealed that "deep sleep with auditory stimulation poses benefits to the heart, specifically the left ventricle, causing it to contract and relax more vigorously."
In a statement, Caroline Lustenberger, PhD, Swiss National Science Foundation Ambizione Fellow at the Neural Control of Movement Lab at ETH Zurich, said, "We were expecting that stimulation with tones during deep sleep would impact the cardiovascular system, but the fact that this effect was so clearly measurable after just 1 night of stimulation surprised us."
For the study:
When the individual fell into deep sleep, a series of brief tones at frequencies known as pink noise played. The series was 10 seconds of pink noise, followed by 10 seconds of silence, then repeated. Investigators monitored whether the sound enhanced deep sleep and whether it influenced the individual’s heart rate and blood pressure. In the morning, the investigators examined the cardiac function of the individual.
— Pharmacy Times
My original uploads are of continuous pink noise, which studies also suggest can aid your sleep quality.
But SCIENCE!
So I re-opened SBAGen and constructed some samples that are more similar to what were used in the study. There are "pulse" variants — where there is no fade-in to the pink noise — and "fade" variants where the pink noise fades in and out (which gives a vaguely "ocean wave" effect).
You can also find the original, seamless pink noise files at: https://archive.org/details/SeamlessPinkNoise, and you can find the new "pulsing" variations at https://archive.org/details/pulsing-pink-noise.
I hope they help, and if they have, consider tossing me a buck or thre at Buy Me a Coffee, KoFi, or PayPal.
Featured Image by 愚木混株 Cdd20 from Pixabay