A scientist who spent 93 days living underwater now feels 10 years younger.
Dr. Joseph Dituri locked himself in a pod in the depths of a Florida lagoon and claims to have 10 times more stem cells and lower cholesterol now he has concluded his experiment.
Dr. Dituri - who has been nicknamed Dr. Deep Sea - said: "I'm not trying to claim this is gonna make you immortal. We know that hyperbaric pressure increases stem cell proliferation.
"It increases telomere length, it also increases collagen - and collagen is the building block of every cell in your body."
The researcher smashed the previous world record of 73 days spent living under the water without depressurisation as part of the study into the impact on his health and the psychological impact of being confined for so long.