Meta-Analyses
Systematic reviews, meta-analyses and critical fact checks: Here we analyze what the totality of research – beyond individual studies – actually says.
9 articles in this category
Brainwave Entrainment
How Frequencies Synchronize Our Brainwaves
Binaural Beats, Isochronic Tones, ASSR – a deep dive into the science of brainwave synchronization, the current state of research, and what EEG measurements reveal.
The Placebo Effect vs. Measurable Results
What Clinical Studies Really Say
A critical analysis of study design, control conditions, and objective biomarkers in sound-based research – and the challenge of separating placebo from measurable effects.
Solfeggio & 432 Hz: Myth or Science?
Between Spiritual Myth and Real Science
What's behind the interest in specific frequencies? We separate esoteric claims from what studies have actually measured – with a sober look at Solfeggio, 432 Hz, and 528 Hz.
Delta Waves (0.5–4 Hz)
The Frequency of Deepest Cell Regeneration
How Delta frequencies are associated with deep sleep phases and what researchers have observed about their relationship to hormonal processes like growth hormone release.
Vagus Nerve Stimulation
How Deep Tones Shut Down Our Stress System
The connection between sound, the vagus nerve, and the parasympathetic nervous system. What research suggests about frequencies and their association with blood pressure and heart rate variability.
528 Hz: Does This Frequency Really Repair Our DNA?
Fact Check on the "Love Frequency"
A sober look at the "love frequency." We separate esoteric claims from what studies on the endocrine system have actually observed – and explore what the research suggests.
Bioresonance Therapy
Diagnostic Wonder or Expensive Placebo?
We critically examine bioresonance devices (MORA therapy). What do the FDA and leading medical institutions say – and what lies behind the principle?
432 Hz vs. 440 Hz: A Matter of Heartbeat
What Double-Blind Studies Say About Tuning and the Autonomic Nervous System
A clinical examination of the tuning debate: What a double-blind pilot study observed about 432 Hz music and cardiovascular markers – and what cymatics images show us.
The Biology of Belief
Is It Just a Placebo Effect?
Why the placebo effect is not mere imagination but is associated with measurable neurological responses in the body – and why frequencies may serve as effective anchors for the nervous system.