Ascientist claims that spending 93 days underwater has turned back the clock on his aging. He says he has 10 times more stem cells which show the potential to reverse signs of aging.
Dr Joseph Dituri spent more than three months living in a 100-square- foot pod at the bottom of the ocean.
He ventured down to the bottom of the Atlantic as part of a study group that aimed to research the effects of pressure on the human body.
Dituri, a retired naval officer, also beat the world record for living underwater smashing the previous world record of 73 days.
Once he returned to land, Dituri was assessed by medics who examined him and measured his telomeres - a region of repetitive DNA at the end of the chromosomes.
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Joseph Dituri. Joseph Dituri. © AP Related video
Would You Cross the Ocean in This Tiny Boat? Dailymotion Dailymotion Telomeres shrink as a person ages, however, Dituri's are now 20 percent longer than they were before the experiment began in March.
He also said he had 10 times more stem cells than when he submerged. Stem cells have been touted as a potential way to slow or reverse aging.
Other benefits included a 72-point drop in cholesterol, more REM sleep and Dituri's inflammatory markers have been halved.
Hyperbaric chambers - which put people under higher pressure - are sometimes used to improve brain health which can lead to better cognition.
Dituri's research examined how the human body reacts to pressure over a longer period of time.
"You need one of these places that are cut off from outside activity. Send people down here for a two-week vacation, where they get their feet scrubbed, relax and can experience the benefit of hyperbaric medicine," Dituri told the Daily Mail of the experience.