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Heat illness refers to a spectrum of disorders that occur when the body is unable to dissipate heat absorbed from the external environment and the heat generated by internal metabolic processes. As heat illness progresses, failure of one or more body systems can occur. This infographic provides an update on heat illness among active component U.S. Armed Forces during 2016. There were 401 incident cases of heat stroke and 2,135 incident cases of other heat illness among active component service members. The annual incidence rate of cases of heat stroke in 2016 was slightly lower than the rate in 2015. There were fewer heat-stroke-related ambulatory visits and more reportable events in 2016 than in 2015. ‘Other heat illness’ was slightly higher in 2016 than in 2015. High risk of heat stroke in 2016 included males, service members aged 19 years or younger, Asian/Pacific Islanders, Recruit Trainees, Combat-specific occupations, Marine Corps and Army members. To learn more about the significant threat of heat illnesses to both the health of U.S. military members and the effectiveness of military operations, visit www.Health.mil/MSMR

Heat illness refers to a spectrum of disorders that occur when the body is unable to dissipate heat absorbed from the external environment and the heat generated by internal metabolic processes. As heat illness progresses, failure of one or more body systems can occur. This infographic provides an update on heat illness among active component U.S. Armed Forces during 2016.

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