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 ...

A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

A man has lived for more than 100 days with an artificial maglev heart working inside his chest. In a landmark moment, he was discharged earlier this year, becoming the first person in the world to ...

Dr. Robert Califf answers the question: 'Avoid Shift Work After A Heart Attack?' — -- Question: Should I avoid shift work after a heart attack? Answer: Some people with heart disease, or their ...

Dr. Charanjit Rihal answers the question: 'Driving Trucks After A Heart Attack?' — -- Question: Can I continue working as a truck driver after a heart attack? Answer: If you're a truck driver, or ...

As a kid, I wanted to live to 100. I was obsessed with the concept of longevity and majored in exercise physiology and nutrition in college before attending osteopathic medical school, which ...