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BRIDGEPORT, Calif. (Feb. 23, 2026) Michael Sarmiento and Tony Duong, exercise physiologists with Naval Health Research Center’s (NHRC) Environmental & Thermal Physiology team, compile data collected from military medical students post cold-water immersion. Once the data has been compiled, analyzed and charted it will be used to build preliminary findings about the effects of cold-water shock response, dexterity & core body temperature. Through its cold-water immersion studies, NHRC develops life-saving strategies that enable the warfighter to overcome the initial, lethal shock of entering frigid water. This vital research provides U.S. Naval, Marine Corps, and joint forces with the tools to maintain cognitive function and enhance survivability in the most extreme maritime environments. (U.S. Navy photo by Matthew Reyes/released)
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