This experiment, called Deep Time, provided thousands of measurements to assess the effect of removing measured time on people's bodies, minds, and social interactions. Insider spoke with Christian Clot, the team leader for this expedition. Here is what he told us about life in the cave. Natural cycles were often longer than 24 hours A globe illuminates the main room where people lived in the cave Darwin Production/adaptation-institute.com In the cave, all electronics had their clocks removed. There was, of course, no sunlight. This left people organizing their days by intuition. Newsletter Loading Email address By clicking ‘Sign up’, you agree to receive marketing emails from Insider