What medical condition is characterized by having too little sodium in the body?

• A. Hypernatremia
• B. Hyponatremia
• C. Hypokalemia
• D. Hyperkalemia

Answer: (B)

The medical condition characterized by having too little sodium in the body is known as hyponatremia. Sodium plays a critical role in maintaining fluid balance, nerve function, and muscle function. When sodium levels fall below the normal range, it can lead to symptoms such as confusion, fatigue, headache, and in severe cases, seizures or coma.

Hyponatremia can occur due to various reasons, including excessive water intake, certain medications, or health conditions that affect sodium balance. Maintaining proper sodium levels is vital for overall health, making awareness of this condition important in physical education and sports contexts. This emphasizes the need for athletes and trainers to monitor hydration and dietary intake to prevent sodium imbalances.