What is hyponatremia commonly defined as?

Hyponatremia is commonly defined as low blood sodium levels. Sodium is an essential electrolyte in the body, crucial for maintaining fluid balance, nerve function, and muscle contractions. When sodium levels drop below the normal range (typically around 135 to 145 mmol/L), it can lead to an imbalance in electrolytes that may cause various symptoms, including headache, nausea, confusion, and even more severe complications in extreme cases.

This condition often occurs due to factors such as excessive water intake, certain medical conditions, or hormonal imbalances. Recognizing and defining hyponatremia as low blood sodium is critical for proper diagnosis and treatment, emphasizing the importance of monitoring electrolyte levels in various clinical and exercise settings.