Spanish athlete locked herself inside a 230-foot-deep cave for 500 days in an unusual experiment. When she came out, she thought only 160 days had passed

A Spanish athlete has emerged from an extraordinary 500-day confinement within a 230-foot-deep cave, only to discover a significant temporal distortion. The athlete, who undertook the deep-cave experiment as part of a scientific study on the psychological effects of isolation, believed that only 160 days had elapsed during her subterranean stay.

The experiment, designed to observe how the human mind copes with prolonged isolation and the absence of external time cues, saw the athlete completely cut off from the outside world. She lived in the cave, which measures approximately 230 feet in depth, without any communication or knowledge of the passage of time.

Upon her emergence, the stark difference between her perceived duration and the actual time spent in isolation highlights the profound impact such extreme conditions can have on an individual's perception of reality. The findings are expected to provide valuable insights into human psychology under duress and the brain's internal clock mechanisms.