KISSIMMEE, FL (August 3, 2026) Research coordinator, Eduardo Uriarte, from Naval Health Research Center (NHRC) discusses his poster displaying research on stimulant use, screen time, sleep and fatigue. NHRC supports military mission readiness with research and development that delivers high-value, high-impact solutions to the health and readiness challenges our military population faces on the battlefield, at sea, on foreign shores and at home. (U.S. Navy video by Matthew Reyes/released)