Cave dwellers: scientists study 40 days without time

NCT ID NCT05603780

First seen Apr 13, 2026 · Last updated May 16, 2026 · Updated 4 times

Summary

This study placed 15 healthy adults in an underground cave for 40 days with no clocks or natural light. Researchers measured how the group's sense of time, sleep patterns, thinking skills, and teamwork changed in this extreme environment. The goal was to understand how humans adapt to isolation and time loss, not to test a treatment.

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Contacts and locations

Locations

  • CHU CAEN

    Caen, France

Conditions

Explore the condition pages connected to this study.