Joseph Dituri, a University of South Florida professor, hopes to do more than set a world record by living underwater for 100 days. He hopes to become “superhuman.”

“The human body has never been underwater that long, so I will be monitored closely,” Dituri says in a news release. “This study will examine every way this journey impacts my body, but my null hypotheses is that there will be improvements to my health due to the increased pressure.”

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Dituri, who also served as a saturation diving officer in the U.S. Navy for 28 years, believes that an earlier study—which showed cells exposed to increased pressure doubled within five days—suggests that he can increase his longevity and prevent aging-related diseases by living in a pressurized environment. “So, we suspect I am going to come out super-human,” he says.

Read more: Popular Mechanics