How can chronic dehydration affect the body?

Chronic dehydration can significantly impact the body, and one of the notable consequences is the formation of kidney stones. When the body is dehydrated, the concentration of minerals and salts in the urine increases, which can lead to the crystallization of these substances, resulting in kidney stones. Adequate hydration helps to dilute these substances, reducing the risk of stone formation. This link between dehydration and kidney stones is well-established in medical literature.

In contrast, the other effects of chronic dehydration on the body can lead to various health issues, including an increased risk of urinary tract infections and impaired kidney function, but they don't specifically highlight the direct relationship between dehydration and kidney stone formation as effectively as the correct choice does. Thus, option C accurately reflects a serious and tangible outcome of chronic dehydration, making it the correct answer.