How Does Perspiration Help Regulate Body Temperature?

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Under mild exertion, such as walking on a 90°F day, perspiration plays a crucial role in heat dissipation. For a 180-pound individual, the metabolic heat generated can be significant, and the body must effectively manage this heat to avoid overheating. While the exact wattage of heat dissipated through perspiration varies, it is essential to understand that comfort levels cannot be achieved in such high temperatures, regardless of heat dissipation methods. The focus should be on maintaining a safe body temperature rather than achieving comfort, as true comfort is unattainable in extreme heat conditions. The discussion emphasizes the importance of hydration and the body's ability to manage heat through sweating, particularly in high-temperature environments.
rpayne88
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I'm not sure this is the best fourm to post this, but...

How much heat, preferably in watts, does perspiration dissipate under mild exertion (i.e. walking) on a 90° F day? Assume the individual is hydrated and not starving. Also assume they weigh 180Lbs.

How much heat would have to be dissipated to make the person feel comfortable (i.e. as if standing in a 70° F air conditioned building?)
 
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