How it works · what the evidence says
Methodology
CHARM leads with its strongest, best-supported piece, the breath, and is careful about the rest. Here is the whole chain, with the evidence tiered honestly and the sources named.
The breath is the mechanism
The halo on every world paces a four-second inhale and a six-second exhale, about six breaths a minute, with the exhale longer than the inhale. That specific pattern sits at the meeting point of two well-studied practices: resonance-frequency breathing (near 0.1 Hz, where heart-rate variability peaks) and extended-exhale breathwork (which leans on the parasympathetic, “rest” side of the nervous system). Of everything CHARM does, this is the part with the firmest ground under it.
The sound is a real, tunable layer
Over the breath sits a soundscape you can shape. In binaural mode, each ear hears a slightly different tone and the brain perceives a third “beat” at their difference, a real phenomenon first described by Gerald Oster in 1973, and the reason binaural mode needs headphones. For the highest frequencies, where binaural beats are weak, CHARM uses isochronic tones (a single gated pulse) that also carry on a speaker. Depth and balance are yours to dial in, so the sound fits the moment while the frequency chosen for each world stays fixed. Many listeners feel these tones clearly in a session — a sense of settling, focus, or drift. Whether that felt shift lasts beyond the session is where the research is genuinely mixed, and CHARM is precise about the line: the tones are a real, tunable layer of the experience, not a cure.
Where the frequencies come from
Each world is tuned to the brainwave band conventionally linked to its intention: delta for deep rest, theta for stillness, alpha for open ease, SMR for calm focus, beta for alertness, gamma for the integrative flash. These are design choices grounded in EEG convention. They are not derived from orbital periods, they are not solfeggio tones, and they are not astrology. One tone is real geophysics: Earth is pinned to the Schumann resonance, 7.83 Hz, the actual frequency of the cavity between Earth’s surface and the ionosphere.
| World | Band & frequency | Why this band | How solid it is |
|---|---|---|---|
| Mercury Clarity | SMR 13.5 Hz | The sensorimotor rhythm (~13–15 Hz) is linked in the neurofeedback literature to calm, alert focus. | SMR neurofeedback is linked to calm, alert focus: promising, and not yet settled science. |
| Venus Compassion | Alpha 9 Hz | Alpha (8–12 Hz) marks relaxed, receptive wakefulness: the soft, open state. | Alpha as relaxed, receptive wakefulness is among the best-established findings in EEG. |
| Earth Synchronicity | Schumann 7.83 Hz | The one tone tied to a real planetary frequency, the Schumann resonance, sitting on the alpha–theta border. | Real geophysics. We love the resonance, but claim no health effect from the number itself. |
| Mars Vitality | Beta 16 Hz | Beta (13–30 Hz) is alert, active, energised cognition. | Beta marks active, alert cognition in the EEG textbook; the lift you feel is a design cue. |
| Jupiter Expansion | Alpha–Theta 7 Hz | The alpha–theta border (~7 Hz) is the expansive, imaginative, awake-yet-inward state. | The alpha–theta border is well-mapped in the research; ‘expansion’ is simply our word for it. |
| Saturn Equanimity | Theta 5 Hz | Theta (4–8 Hz) is deep meditative stillness. | Theta tracks the deep, quiet stillness seasoned meditators reach. |
| Uranus Insight | Gamma 40 Hz | Gamma (~40 Hz) is associated with the integrative "flash"; delivered isochronically, since binaural beats are weak this high. | Gamma’s cognitive role is genuinely emerging; much of the evidence is still in animal models. |
| Neptune Deep Rest | Delta 2 Hz | Delta (0.5–4 Hz) is the deep-sleep band. | Delta as the deep-sleep band is settled, well-mapped EEG. |
| Enigma 9 Threshold | Free 0.5–40 Hz | The hypothetical ninth planet: the free-explorer session, one slider sweeping the whole range. | No claim here: a sandbox to feel the whole range for yourself. |
The evidence, tiered honestly
The most important thing on this page is where each claim actually sits. So we plot it: from the firm ground we lead with, through the open questions we find genuinely promising, to the things we simply do not claim.
Well supported
- Slow, exhale-weighted breathing (~6 breaths/min) shifts the nervous system toward calm and raises heart-rate variability.
- The ritual itself (stopping, dimming the world, and breathing on purpose) is meaningfully calming.
- Binaural beats are a real, documented perceptual phenomenon.
Mixed / emerging
- Lasting benefit from binaural beats for anxiety or focus: the studies are small and mixed. Yet in the moment, plenty of people feel a real settling or sharpening, and that felt shift is a big part of what makes a session land.
- 40 Hz gamma and cognition: a genuinely exciting thread of research that we find fascinating, even though much of it is still in animal models. We treat it as promise, not proof.
- Mapping brainwave bands to mental states: a clean, intuitive compass that gives each world a distinct feel. It is a heuristic we trust to shape the experience, not a hard law we would defend.
Not claimed
- That 7.83 Hz plugs you into the planet. It’s a beautiful number, not a wellness cheat code.
- That any tone in here treats, cures, or fixes a thing. It’s a sound, not a prescription.
- That the planets are doing something to you. The sky sets the mood; it doesn’t pull your strings.
Safety
CHARM isn’t for use while driving or operating machinery, and volume should be kept comfortable. It isn’t recommended for people with epilepsy or a seizure history, active psychosis, bipolar disorder in a manic phase, or a pacemaker, or during pregnancy without medical advice; under-18s only with supervision. These contraindications are literature-audited and deliberately conservative: a careful reading of the research rather than a completed clinical or legal review. If in doubt, ask a clinician.
Selected sources
- Oster, G. (1973). Auditory beats in the brain. Scientific American, 229(4), 94–102.
- Garcia-Argibay, M., Santed, M. A., & Reales, J. M. (2019). Efficacy of binaural auditory beats: a meta-analysis. Psychological Research, 83, 357–372.
- Lehrer, P. M., & Gevirtz, R. (2014). Heart rate variability biofeedback. Frontiers in Psychology, 5, 756.
- Steffen, P. R. et al. (2017). Resonance frequency breathing, HRV, blood pressure and mood. Frontiers in Public Health, 5, 222.
- Balban, M. Y. et al. (2023). Brief structured respiration practices. Cell Reports Medicine, 4(1), 100895.
- Zaccaro, A. et al. (2018). How breath-control can change your life: slow breathing. Frontiers in Human Neuroscience, 12, 353.
- Iaccarino, H. F. et al. (2016). Gamma-frequency entrainment (mouse model). Nature, 540, 230–235.
- Schumann, W. O. (1952). On the resonances of the Earth–ionosphere cavity (~7.83 Hz).
- Planetary data: NASA planetary fact sheets; JPL Solar System Dynamics. Space weather: NOAA Space Weather Prediction Center.
The standing line
Honest about
where it ends.
Entrainment effects are modest and unproven: a calm space for breathing, not intended for treatment. CHARM is not a medical device.