Imagine living in complete darkness, deep underground, for 17 months—no sunlight, no people, just the echo of your thoughts. That’s exactly what happened to Beatriz Flamini, a Spanish climber and extreme sports enthusiast. She volunteered for a science experiment to see how isolation affects the human mind and body, and she spent all that time in a cave without contact from the outside world. Beatriz passed the time by reading, exercising, and writing journals, but she didn’t even know how long she’d been down there until she came out! When she finally emerged, she was surprised to find the world had changed in ways she never expected. And she wasn't the only one who spent months inside a cave for science!
