Final answer:
Having too much water can lead to water intoxication, which is potentially fatal by diluting blood sodium levels, while too little water can cause severe dehydration. Both extremes can have serious health implications.
Step-by-step explanation:
True, having too much water relative to other solutes can indeed have severe consequences for health. While our bodies require water to function, excessive water intake can lead to a dangerous condition known as water intoxication or hyponatremia. This occurs when too much water dilutes the sodium in the bloodstream to dangerously low levels, impacting brain, muscle, and heart functions and can be potentially fatal. Conversely, insufficient water intake can lead to dehydration, which can cause symptoms like weakness, dizziness, and heart palpitations and can be life-threatening in severe cases. Both conditions highlight the importance of maintaining a proper balance of water and electrolytes in the body.