Subscribe || https://gwr.co/YT-Sub Favourites || http://gwr.co/YT-Favs A record so dangerous that Guinness World Records no longer actively monitor it. The longest recorded period for which a person has voluntarily deprived themselves of sleep achieved by Randy Gardner (USA) in San Diego, California, USA, between 6 a.m. on 28 December 1963 and 6.01 a.m. on 8 January 1964. In one of the best researched cases of voluntary sleeplessness, Gardner was studied by the US Navy Medical Neuropsychiatric Research Unit in San Diego and later the Stanford University School of Medicine in California. ---------------------------------------------------------------------------------------------- At Guinness World Records we want to show that everyone in the world is the best at something, and we’re here to measure it! Whether you’ve got the stretchiest skin, know the world’s smallest dog or want to create the largest human dominoes chain we want to hear about it. Here on the Guinness World Records YouTube channel we want to showcase incredible talent. If you're looking for videos featuring the world's tallest, shortest, fastest, longest, oldest and most incredible things on the planet, you're in the right place. ---------------------------------------------------------------------------------------------- This video has been dubbed using an artificial voice via https://aloud.area120.google.com/ to increase accessibility. You can change the audio track language in the Settings menu. Website || http://gwr.co/Website Facebook || http://gwr.co/FB Twitter || http://gwr.co/TW Instagram || http://gwr.co/IG Snapchat || http://gwr.co/SC TikTok || http://gwr.co/TT For licensing: tv@guinnessworldrecords.com #GWR #GuinnessWorldRecords #WorldRecords