Sleep & Recovery
PEMF at 7.83 Hz in the Evening
Twenty to thirty minutes of pulsed electromagnetic field at 7.83 Hz before bed. I keep this one clearly labeled: the specific frequency framing is more folk science than clinical literature.
The protocol
- 7.83 Hz, the frequency usually called the Schumann resonance.
- 20-30 minutes.
- Evening, as part of the wind-down.
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What I do
Twenty to thirty minutes of PEMF at 7.83 Hz in the evening, as part of winding down.
Being straight about this one
7.83 Hz is the Schumann resonance — the fundamental frequency of the cavity between the earth's surface and the ionosphere. The story attached to it is that we evolved inside that field and benefit from being re-exposed to it.
That story is popular. It is not the same thing as the clinical PEMF literature, which is mostly about bone healing and pain at quite different parameters, and which does not single out 7.83 Hz as special. I have not found the frequency framing to be well supported, and I am not going to pretend otherwise because it is on my own list.
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