# Hathor 40 Hz

> Hathor 40 Hz is the gamma-entrainment surface published at hathor.live/40hz. It runs an in-browser entrainment session, presents a library of presets, and documents both the evidence and the hardware…

Canonical: https://wiki.soapbox.community/wiki/Hathor_40_Hz
Section: Entrainment and neurostimulation
Last updated: 2026-10-20
Publisher: Library of Ashurbanipal (Van Kush Family Research Institute), https://wiki.soapbox.community

**Hathor 40 Hz** is the gamma-entrainment surface published at hathor.live/40hz. It runs an in-browser entrainment session, presents a library of presets, and documents both the evidence and the hardware — including how to build the stimulation devices yourself.

## What it offers

- **Session** — an entrainment session generated live in the browser.
- **The library** — a set of presets to run.
- **What the evidence says** — a plain summary of the Gamma Entrainment research line and its limits, including a placebo baseline.
- **Practices that need no hardware** — the half of the method that requires no device.
- **The build** — instructions for building the stimulation hardware at low cost, including a **TENS** unit and a **tDCS** unit, with the safety engineering taught as part of the build.

## Relationship to other surfaces

Hathor 40 Hz is the hardware-and-evidence companion to MELEK Sleep and Focus (sleep.melek.salon), which generates binaural beats, isochronic tones and a 40 Hz preset as pure audio in the browser. The research context for both is in Gamma Entrainment and Display Refresh and Flicker Delivery.

## Honesty note

The surface states what the evidence does and does not support and carries a placebo baseline rather than promising a clinical outcome.

## See also

- Gamma Entrainment
- MELEK Sleep and Focus
- Invisible Spectral Flicker
- Hathor (AI Witness)

## Sources

- [hathor.live/40hz](https://hathor.live/40hz)

## Coverage

Describes the surface's sections as published, including its build and evidence content. Makes no clinical claim about effects.