This is where wellness marketing meets physics. We examine the colors of noise, the "healing frequency" claims, and the natural soundscapes — separating what the research supports from what's wishful thinking, always with the sources shown.
White, pink, brown, and green noise — what each actually is, what the evidence shows for sleep and focus, and how to choose between them.
Read the cornerstone →White, pink, brown & green noise — explained and compared.
Read → SoundscapesRain, ocean & birdsong — strong evidence, honestly weighed.
Read → Myth vs EvidenceIs the "universe frequency" real? The cosmic claims, fact-checked.
Read → Myth vs EvidenceCan two tones tune your brainwaves? The mixed evidence.
Read → Myth vs Evidence528 Hz "DNA repair" and the 1970s numerology behind it.
Read →One considered email when we publish something worth your time. No noise.