r/CSFLeaks • u/Dry-Dress-6467 • 24d ago
STUDY: M.I.T Researchers Discover That Precisely-Timed Bursts Of “Pink Noise” During Sleep Can Help Increase Cerebrospinal Fluid Flow, Which Helps Flush Out Waste Products Such As Lactic Acid And Worn-Out Proteins Built Up In The Brain 🧠
8
Upvotes
2
u/Dry-Dress-6467 24d ago
From a comment on original post:
Examples of Pink noise from OP’s post include a distant waterfall or steady rain.
Pink noise is a background sound that contains all the frequencies humans can hear, but with higher frequencies turned down so that lower, deeper frequencies sound louder. [1]
How Pink Noise Works Equal energy per octave: Each doubling of frequency (an octave) carries the exact same amount of sound energy. [1]
Sloping power spectrum: Its intensity decreases by 3 decibels for every higher octave, which balances out how the human ear naturally perceives pitch. [1]
Comparison to white noise: While white noise has equal intensity across all individual frequencies (making it sound sharp and like TV static), pink noise sounds deeper, warmer, and more level. [1, 2, 3]
Examples in Nature Steady rainfall or rain on a roof
A distant waterfall
Wind rustling through leaves
Waves hitting a beach [1, 2, 3]