July 20, 1957


JAMA. 1957;164(12):1364-1365. doi:10.1001/jama.1957.02980120068014

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Danger of Heat Injury to Reservists.—  More than 1,000 cases of heat injury occur each year in Army personnel, and most cases are preventable, according to Major Gen. Silas B. Hays, the surgeon general. Heat injury includes heat cramps, heat exhaustion, and heat stroke. Although only a few deaths occur following heat stroke, a person may develop a low tolerance for heat condition where death does not occur, the surgeon general said.In an effort to reduce the number of heat casualties among Army reserve components during the summer months under this year's intensified training schedule, the Department of the Army has issued a circular on prevention of heat injury. The new directive ( circular 40-8 ) requires that recruits not accustomed to physical activity under conditions of high temperatures and humidity should be acclimatized to these conditions by graduated exposure and gradual increase in workload, particularly during basic training. In

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