RAMAT-GAN, Israel — Your blood test results might be “normal,” but still put you at risk for serious heart problems. A major international study found that people with serum sodium levels at the upper ...

More evidence has emerged that mild hyponatremia, even within the normal sodium range, as well as hypernatremia are both associated with increased risk of cardiovascular disease and mortality in older ...

This exploratory study in healthy young adults found that plasma sodium levels within the normal clinical range are ...

Having a "high normal" serum sodium level in midlife, which reflects less than optimal fluid intake, is associated with an increased risk for left ventricular hypertrophy — a heart failure (HF) ...