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Content: If warming of the body continues eventually core temperature rises, producing hyperthermia (heatstroke) which may result in death. 4. Acclimatization to heat and cold. Acclimatization consists of a series of physiological adjustments that occur in a person who is habitually exposed to either hot or cold conditions. It has been said that acclimatization consists of two processes: "getting used to it" and "not getting used to it"! Acclimatization to heat: In hot climates physiological adaptations occur which help to cool the body: -water intake increases (note it's better to drink warm fluids because these will elevate core temperature and encourage sweating to increase cooling, whereas cold fluids decrease core temperature, which discourages sweating to decrease cooling, which increases discomfort. -sweating increases.