Marine Researcher Completes Groundbreaking 100-Day Underwater Mission in Florida Keys


In a feat of endurance and scientific prowess, Dr. Joseph Dituri, a renowned diving explorer and medical researcher, recently completed a 100-day underwater research mission at a marine habitat in Florida Keys.

  • On Friday, Dituri resurfaced after setting a new record for the longest time spent living underwater at ambient pressure.
  • This ground-breaking research mission took place at Jules' Undersea Lodge habitat in Key Largo, Florida Keys, where Dituri shattered the previous record of 73 days set in 2014.

Emerging from the underwater habitat after 100 days, Dituri expressed gratitude for the warmth of the sun and the experience he had accumulated during the mission. His journey was not merely for setting records, but aimed at pushing human tolerance for underwater environments and isolated, confined extreme conditions.

The research mission, known as Project Neptune 100, was organized by the Marine Resources Development Foundation, which owns the Jules' Undersea Lodge habitat. It began on March 1 and involved extensive medical and marine research as well as educational outreach.

Advancements and Findings

The study centered on the physical and mental responses of the human body to extended exposure to extreme pressure and isolated environments. The findings from this research are expected to benefit future long-term missions involving ocean researchers and astronauts.

During his underwater stay, Dituri observed numerous health benefits:

  • His cholesterol levels plummeted by 72 points.
  • All inflammatory markers decreased by 30 percent.
  • There was a notable increase in REM sleep, critical for healthy brain development.

Not only did this underwater mission provide groundbreaking data on human health, but it also created unique educational opportunities.

Education and Outreach

Throughout his mission, Dituri maintained an online connection with thousands of students from 12 countries. He successfully taught a course for the University of South Florida while undersea, and received over 60 visitors to the underwater habitat. He described his interactions with almost 5,000 students and their interest in preserving and rejuvenating the marine environment as the most gratifying part of the mission.

Dituri is scheduled to present the findings from Project Neptune 100 at the World Extreme Medical Conference in Scotland this November. In the meantime, he plans to cherish life above water and spend quality time with his family and loved ones. His pioneering research has not only set a new endurance record but has also significantly contributed to our understanding of human adaptation to extreme environments.