{"id":30987,"date":"2026-08-04T08:50:00","date_gmt":"2026-08-04T12:50:00","guid":{"rendered":"https:\/\/www.ecoportal.net\/en\/?p=30987"},"modified":"2026-08-04T08:50:00","modified_gmt":"2026-08-04T12:50:00","slug":"sense-of-time-climber-spent-500","status":"publish","type":"post","link":"https:\/\/www.ecoportal.net\/en\/sense-of-time-climber-spent-500\/30987\/","title":{"rendered":"A climber sealed herself 230 feet under a Spanish mountain to spend 500 days underground, and by day 65 she had lost all track of time"},"content":{"rendered":"<p>In late 2021, a Spanish climber named Beatriz Flamini&nbsp;<strong>climbed down into the dark<\/strong>&nbsp;and pulled the world shut behind her.<\/p>\n<p>Her plan was to live alone&nbsp;<strong>230 feet below a mountain<\/strong>&nbsp;in southern Spain.<\/p>\n<p>No sunlight, no visitors, and no way to call the surface.<\/p>\n<p>She carried in everything she would need and left nothing to chance.<\/p>\n<p>She would stay for&nbsp;<strong>500 days underground<\/strong>, longer than a year and a half.<\/p>\n<p>What nobody could predict was how fast her own mind would&nbsp;<strong>let go of time<\/strong>.<\/p>\n<h2>The cave that had no clock<\/h2>\n<p>The cave sat&nbsp;<strong>north of the town of Motril<\/strong>, in the hills of Granada.<\/p>\n<p>Its main chamber was about the size of a small apartment, with a ceiling three stories up.<\/p>\n<p>A single lantern and her headlamp were the only suns she would ever see.<\/p>\n<p>Down there the air never changed and&nbsp;<strong>the dark never lifted<\/strong>.<\/p>\n<p>Flamini brought&nbsp;<strong>two GoPro cameras<\/strong>&nbsp;and filmed short messages every few days.<\/p>\n<p>She read her way&nbsp;<strong>through 60 books<\/strong>&nbsp;and kept her body moving with daily exercise.<\/p>\n<p>A support team left food and water without ever showing their faces.<\/p>\n<p>From the moment she descended, every marker the brain uses to tell time was gone.<\/p>\n<p>There were no windows to check and no sky to read.<\/p>\n<h2>Day 65 and the clock stops<\/h2>\n<p>For the first two months, Flamini tried to&nbsp;<strong>keep score of the days<\/strong>.<\/p>\n<p>She counted sunrises she could not see and marked time as best she could.<\/p>\n<p>She leaned on her body, her hunger, and her sleep to guess the hour.<\/p>\n<p>Then,&nbsp;<strong>around day 65<\/strong>, the whole effort simply fell apart.<\/p>\n<p>After that she stopped counting and let the calendar go.<\/p>\n<p>It began to feel, she later said, like it was&nbsp;<strong>always 4 in the morning<\/strong>.<\/p>\n<p>Without a sunrise or a sunset, one hour bled into the next.<\/p>\n<p>Days, weeks, and months folded into&nbsp;<strong>a single long present<\/strong>.<\/p>\n<p>The past and the present started to feel like the same blurred moment.<\/p>\n<h2>Why the brain loses track underground<\/h2>\n<p>The reason lies in&nbsp;<strong>a clock you carry<\/strong>&nbsp;in your own head.<\/p>\n<p>Deep in the brain sits a cluster of cells that sets&nbsp;<strong>the body&#8217;s daily rhythm<\/strong>.<\/p>\n<p>Left alone, that internal clock does not run on&nbsp;<strong>a clean 24 hours<\/strong>.<\/p>\n<p>It drifts a little longer, closer to 24 and a quarter hours each day.<\/p>\n<p>Daily light is what resets it and keeps it locked to the real world.<\/p>\n<p>Think of it as a watch that runs slightly slow and needs a daily nudge.<\/p>\n<p>Meals, chores, and contact with other people help hold it steady too.<\/p>\n<p>Take all of that away, and the clock is&nbsp;<strong>free to wander<\/strong>.<\/p>\n<p>Cut off from the sky, it slowly loosens its grip on the calendar.<\/p>\n<h2>What the 500 days finally showed<\/h2>\n<p>When the support team came to bring her out, Flamini could not believe them.<\/p>\n<p>She guessed that&nbsp;<strong>only about 160 to 170 days<\/strong>&nbsp;had passed.<\/p>\n<p>In truth she had been underground for the full 500.<\/p>\n<p>That is a gap of more than 300 days between what she felt and what was real.<\/p>\n<p>Already? No way, she told the crew who opened the cave.<\/p>\n<p>To her, the extra months had never happened at all.<\/p>\n<p>She had gone in&nbsp;<strong>at 48 years old<\/strong>&nbsp;and came out at 50.<\/p>\n<p>Chronobiologists from the&nbsp;<a href=\"https:\/\/www.npr.org\/2023\/04\/17\/1170388759\/500-days-cave-beatriz-flamini-spain\" target=\"_blank\" rel=\"noopener\">University of Granada<\/a>&nbsp;and the University of Almer\u00eda studied her along with the sleep firm Kronohealth.<\/p>\n<p>They tracked how her body clock and her sense of time drifted across the months.<\/p>\n<p>The data offered a rare look at a healthy brain cut loose from daylight.<\/p>\n<p>Her long drift echoed the&nbsp;<a href=\"https:\/\/www.smithsonianmag.com\/smart-news\/spanish-athlete-emerges-after-500-days-alone-in-underground-cave-180981998\/\" rel=\"nofollow noopener\" target=\"_blank\">French explorer<\/a>&nbsp;Michel Siffre, who lived six months in a Texas cave in 1972 and slid into&nbsp;<strong>48 hour days<\/strong>.<\/p>\n<h2>The clock you never knew you needed<\/h2>\n<p>Most of us never notice this clock until something&nbsp;<strong>knocks it loose<\/strong>.<\/p>\n<p>Jet lag is&nbsp;<strong>the same drift in miniature<\/strong>, packed into a single long flight.<\/p>\n<p>Night shift workers fight it every week, awake when the body begs for sleep.<\/p>\n<p>Even a late night of bright phone screens nudges the clock&nbsp;<strong>off its mark<\/strong>.<\/p>\n<p>Flamini simply ran the most extreme version anyone has tried on purpose.<\/p>\n<p>Yet the same forces tug at everyone who crosses time zones or works nights.<\/p>\n<p>Her 500 days underground show how thin the thread to real time really is.<\/p>\n<p>Like the steady pull that turns an&nbsp;<a href=\"https:\/\/ecoportal.net\/en\/an-offshore-wind-farm-in-the-north-sea\/28240\/\" target=\"_blank\" rel=\"noopener\">offshore wind<\/a>&nbsp;farm, the clock runs on cues we rarely count.<\/p>\n<p>It is the same hidden loss as a fox chased off its land by&nbsp;<a href=\"https:\/\/ecoportal.net\/en\/fox-lost-wild-home-solar-panels\/24938\/\" target=\"_blank\" rel=\"noopener\">solar panels<\/a>, real but easy to miss.<\/p>\n<p>The clock you never think about is the one keeping you&nbsp;<strong>tied to the day<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In late 2021, a Spanish climber named Beatriz Flamini&nbsp;climbed down into the dark&nbsp;and pulled the world shut behind her. Her plan was to live alone&nbsp;230 feet below a mountain&nbsp;in southern Spain. No sunlight, no visitors, and no way to call the surface. She carried in everything she would need and left nothing to chance. She &#8230; <a title=\"A climber sealed herself 230 feet under a Spanish mountain to spend 500 days underground, and by day 65 she had lost all track of time\" class=\"read-more\" href=\"https:\/\/www.ecoportal.net\/en\/sense-of-time-climber-spent-500\/30987\/\" aria-label=\"Read more about A climber sealed herself 230 feet under a Spanish mountain to spend 500 days underground, and by day 65 she had lost all track of time\">Read more<\/a><\/p>\n","protected":false},"author":28,"featured_media":31272,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"sense of time","rank_math_title":"A climber sealed herself 230 feet under a Spanish mountain to spend 500 days underground, and by day 65 she had lost all track of time","rank_math_description":"A climber lived 230 feet underground for 500 days and lost her sense of time on day 65. Here's what that reveals about how your brain tracks time.","footnotes":""},"categories":[25],"tags":[],"class_list":["post-30987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-human-science"],"_links":{"self":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/30987","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/comments?post=30987"}],"version-history":[{"count":0,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/30987\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media\/31272"}],"wp:attachment":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media?parent=30987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/categories?post=30987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/tags?post=30987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}