HOUSTON, Texas (KTRK) -- Marathoners know better than most to stay hydrated. Your body does need lots of fluid before, during, and after the race, but it's possible to overdo it. That can lead to a ...

In older adults, low sodium often results from certain medications, kidney issues, or infections. Because multiple factors may contribute, treatment depends on identifying the underlying cause. Sodium ...

Q: My adult son was having severe nausea and vomiting. He went to the emergency room, where they told him his symptoms were caused by low blood sodium. What is this? A: Sodium is an important ...