The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Did you know your calf muscles help protect your heart? It turns out, they do more than help you stay balanced and stable. Until recently, and even as a personal trainer, I didn’t know that your calf ...

When most people think of heart health, they imagine cardio exercises, nutritious meals and regular doctor visits. Yet, few would suspect a link between their heart and calf muscles. Surprising as it ...

People with pockets of fat hidden inside their muscles are at a higher risk of dying or being hospitalized from a heart attack or heart failure, regardless of their body mass index, according to new ...

Our hearts beat around 100,000 times a day—and do so throughout our entire lives. They draw the energy for this from the mitochondria. As the "powerhouses of the cells," mitochondria produce 95% of ...

When heart muscle gets damaged, the result is often permanent. Unlike other muscles in the body, the heart has long been believed to lack the ability to heal itself. But recent research suggests that ...

Study shows greater muscle area in men leads increased risk of heart disease; it's different for muscle density. Body composition -- often expressed as the amount of fat in relation to muscle -- is ...