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The original was posted on /r/todayilearned by /u/tyrion2024 on 2024-12-13 16:44:36+00:00.

Original Title: TIL when Guinness World Records stopped monitoring the record for the longest time to stay awake in 1997, the record holder at the time was Robert McDonald who went 453 hours 40 minutes (18 days 21 hours 40 minutes) without sleeping in 1986.