Final answer:
Heat exhaustion is defined as hemoconcentration from salt and water loss and is characterized by symptoms such as profuse sweating, pale skin, and weakness.
Step-by-step explanation:
Heat exhaustion is defined as hemoconcentration from salt and water loss. It is characterized by symptoms such as profuse sweating, pale skin, and weakness. This condition occurs when the body's cooling mechanisms become overwhelmed, leading to a rise in core body temperature.
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