What are some signs of dehydration?

• A. Excessive sweating and increased appetite
• B. Thirst, dry mouth, fatigue, and dizziness
• C. Frequent urination and headaches
• D. Heightened energy and alertness

Answer: (B)

Thirst, dry mouth, fatigue, and dizziness are key signs of dehydration because they reflect the body's response to a lack of adequate fluid levels. When the body is dehydrated, it often triggers sensations of thirst as a primary method to encourage the intake of fluids. A dry mouth is another clear indicator of decreased hydration, as saliva production decreases when water levels in the body drop. Fatigue occurs because hydration is crucial for maintaining optimal physiological functions, including energy levels, and lack of fluids can lead to exhaustion. Dizziness is also common, as dehydration can affect blood volume and circulation, resulting in reduced oxygen delivery to the brain, which can lead to feelings of lightheadedness or unsteadiness.

In summary, the presence of these symptoms is a direct reflection of the body's need for more fluids to maintain proper function and balance.