I didn't eat for 23 days, lost 49lb and felt healthier than ever, says DONAL MACINTYRE. So when the longevity guru doctor behind it raved about three-day total darkness experiment, I wanted to take part. What happened next changed my life... ⊖⊖ found 2026 › Mar › 07 (Sat) @ 02:21 UTC a story from The Daily Mail 💩 › The Daily Mail DONAL ■ Ultimate Darkness Retreat ■ preview sentiment