A. Sweating is a more efficient way for heat dissipation than convection.
B. The evaporation of sweat can raise body temperature by 1° C to 10° C over the surface of the skin after only 15 minutes of exercise or hot climate exposure.
C. Sweat evaporates quickly, so sweat production is limited during times when ambient temperatures are warm and humidity levels are high, such as in some tropical climates where sweating is most evident under conditions that produce high rates of evaporation from bare skin surfaces (e.g., moderate-to-high temperatures).
D. Sweating cools the blood vessels while raising core temperature which helps maintain normal temperature throughout the body’s tissues; however, excessive sweating lowers sweat rate at all sites because it reduces vasodilation produced by sympathetic neural stimulation during exercise or environmental stressors producing elevated core body temperature (elevated heart rate) without direct physical exertion like in cold environments like polar regions).
E. Greater sweating results in greater heat loss because additional water vapor will increase heat transfer via conduction and radiation; therefore faster heating occurs with greater amounts of water lost through perspiration due to higher metabolic rates resulting from increased activity level (i) but also (ii) if there are no compensatory mechanisms operating to lower metabolic rate e.g., shivering muscles or increasing metabolism by inhalation/exhalation).
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