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Human Physiologic responses to cold exposure preserve core body temperature, but those responses may not be sufficient to prevent hypothermia if heat loss is prolonged. This infographic offers helpful information on preserving core body temperature to counter the threat from cold environments. Physiologic responses include: •	Constriction of the peripheral (superficial) vascular system – may result in non-freezing injuries or hasten the onset of actual freezing of tissues (frostbite) •	Minimizing loss of body heat •	Protecting superficial tissues Protection includes:	 •	Nutrition •	Shelter •	Physical Activity •	Protective Clothing Learn more about preserving core body temperature by reading the Medical Surveillance Monthly Report at www.Health.mil/AFHSB

Human Physiologic responses to cold exposure preserve core body temperature, but those responses may not be sufficient to prevent hypothermia if heat loss is prolonged. This infographic offers helpful information on preserving core body temperature to counter the threat from cold environments.

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Winter Safety | Armed Forces Health Surveillance Branch

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