Schumann resonances conspiracy theories
Schumann Resonance conspiracy theories are a family of claims that misrepresent the physics of Schumann resonances - natural, extremely low-frequency electromagnetic resonances of the Earth–ionosphere cavity - as evidence that "time is speeding up," that a 24-hour day now "feels like" or has become ~16 hours, or that fluctuations near ~7.83 Hz directly entrain or transform human biology and consciousness. These narratives spread in New Age, wellness and conspiracy communities from the mid-2010s onward, often citing online spectrograms to claim that "whiteouts" or "blackouts" mark global energetic events.
Source: Wikipedia — Schumann resonances conspiracy theories (CC BY-SA 4.0)