Michel Siffre: This man spent months alone underground – and it warped his mind

Re:Michel Siffre: This man spent months alone underground – ... by jotaen on Thursday January 08, 2026 @06:17AM (#46539748)

I find the “no light” bit in the subtitle confusing, as the article says he had “a torch as his only light source”. I get that a torch is not much light, but it’s still significantly different from “no light”. Or maybe they meant “no daylight”, but that seems hardly worth to mention for a cave.

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Re:Michel Siffre: This man spent months alone underground – ... by adammarples on Thursday January 08, 2026 @07:29PM (#46548540)

It's worth mentioning because we use daylight to regulate our circadian rhythm, and he was studying the body's circadian rhythm without daylight

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