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 ...

A sodium blood test will tell you if your blood sodium levels are normal. Blood sodium levels actually have little to do with how much sodium you consume and are tightly regulated by your body's ...

Hypertension has been an established heart disease risk factor for decades. When blood flows at normal pressure, your vessels stay strong and flexible. Cranked up too high for a long period of time, ...

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) ...