They Risked Their Lives to Uncover a Hidden Crystal World | Naica Cave Documentary

Thai Cave Rescue (Full Episode) | Drain the Oceans

Woman Lived Alone Inside a Cave for 500 Days Without Internet or Sunlight #women #experiment Beatriz Flamini spent 500 days living alone inside a cave near Granada, Spain, as part of a scientific isolation experiment. The project was designed to study how the human mind and body react when separated from sunlight, clocks, technology, and direct human contact for a very long period of time. During the experiment, she had no access to the internet, phone calls, news, or natural day and night cycle