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Decreasing ability to thermoregulate is evident at about age
70 and declines with each decade of life. Thirst, blood vessel dilation or
constriction, and the ability to perspire are normal homeostatic mechanisms that
help individuals regulate body temperature during extremes of cold or heat. Due
to changes in sweat glands that occur with age, older people experience a
progressive decrease in their ability to perspire. Decreases in the subcutaneous
fat composition of the body make the elderly person particularly susceptible to
increased heat lossThis web page uses frames, but your browser doesn't support them.