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Hauntings Low Frequency

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Apr 27, 2026 at 18:00

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Ars Technica Apr 27, 2026 at 18:00 Big Tech

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Low-frequency infrasound (below 20 Hz) can raise cortisol levels in saliva and increase irritability.

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Ars Technica Cortisol Cortisol Levels Hauntings

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