Working in his yard on a very hot summer day, eugene begins to experience nausea, headache, dizziness, and faintness. despite sweating and feeling hot, he notices that his skin is cool and he has the chills. eugene could be suffering from

heatstroke

Explanation:

It is produced by an acute elevation of body temperature, this causes elevation of blood pressure, which reduces the passage of blood to the skin, and becomes cold and fresh, in addition to headaches, nausea and vomiting.

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.

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