A new study shows that the sinoatrial node (SAN) -- a small but powerful structure in the human heart that serves as its natural pacemaker and initiates every normal heartbeat -- runs on different ...

For decades, doctors and researchers have puzzled over a basic heart rhythm mystery: Why do women tend to have faster heartbeats while men are more likely to develop irregular rhythms like atrial ...

The Framingham Heart Study is the longest running cohort study on cardiovascular health in human history. More than 15,000 volunteers with roots in Framingham have allowed researchers to track their ...

Sign up for CNN’s Eat, But Better: Mediterranean Style. Our eight-part guide shows you a delicious expert-backed eating lifestyle that will boost your health for ...

Most people don’t spend their 20s, 30s or even 40s worrying about heart disease. You might think it’s something you can safely ignore until midlife and beyond. But new research suggests that for many ...

The temperature of the bedroom at night could affect heart health — particularly in older adults. Heat places extra demands on the cardiovascular system, according to Dr. Fergus O’Connor from Griffith ...

Liz covers cardiovascular and metabolic disease, asking why we’re not doing better or even losing ground against the world’s leading killer. Send tips on Signal at LizC.22. Vasan Ramachandran is ...