When is your heart rate normal and when is it dangerous? Experts explain what to do if your heart rate is too low or too high. What’s the Difference Between a Normal and Dangerous Heart Rate?

Medically reviewed by Jeffrey S. Lander, MD Heart sounds are the noises made as blood moves through the heart with each heartbeat. When the heart valves close, they make a distinct lubb-dupp sound.

Higher serum sodium levels, even within the normal range, are linked to increased risk of developing hypertension and heart failure. People with sodium levels of 140 mmol/L or higher had up to a ...

Intensive exercise- and sport changes the heart of an athlete. Research led by Amsterdam UMC shows that the hearts of female athletes have different characteristics than those of male athletes.

Slightly elevated blood glucose within a range of what is generally considered “normal” may be associated with increased risk for heart disease, researchers reported. Gregg C. Fonarow, MD ...

Heart failure is a heterogeneous syndrome. Approximately 30–50% of patients with heart failure have normal or near normal left ventricle function. Several epidemiological studies confirm that ...