While having too little water relative to other solutes is bad, having too much water can also have severe consequences.

The statement is true. While it is essential to maintain proper hydration for overall health and optimal physical performance, having an excessive amount of water can lead to a condition known as hyponatremia, or water intoxication. This occurs when the balance of electrolytes in the body is disrupted due to an overabundance of water.

When too much water is consumed, it can dilute the sodium levels in the blood, leading to an imbalance that may cause cells to swell. This swelling can result in serious health issues, including confusion, seizures, muscle weakness, and, in severe cases, coma or death. The body’s regulatory systems, such as the kidneys, typically manage fluid balance efficiently under normal conditions; however, when water intake far exceeds the kidneys' ability to excrete it, complications arise.

Maintaining proper hydration is key, but it’s equally important to be mindful of not overhydrating, especially during events like endurance sports where the desire to drink might increase without adequate attention to electrolyte levels. Proper hydration strategies should balance water intake with electrolyte replenishment to avoid these severe consequences.