Each day we take for granted that our hearts will continue efficiently beating oxygen-rich blood to our organs. But a slow or rapid heartbeat—called bradycardia and tachycardia—can cause serious functional problems.
If your thyroid gland is underactive — a condition called hypothyroidism — your body produces too little thyroid hormone. Even when you’re on the right dose of thyroid hormone for your weight, you may be getting more than your body needs.
Could the secret to surviving a heart attack be as simple as coughing? Lately, social media has circulated this misleading and dangerous idea. Don't take this myth to heart! Learn the facts behind why it's so wrong.
Jay Wiener completed two cross-country ski marathons within two months of a mitral valve repair at Cleveland Clinic. His inspirational story gives others confidence in a complete recovery.
Before you reach for an energy drink, decide whether increased blood pressure and a prolonged QT interval (an abnormal heart rhythm) is the buzz you’re after.
Cardiovascular disease, the leading cause of death in the US, is not something that should be taken lightly. Cleveland Clinic’s Richard Krasuski, MD, highlights five symptoms you shouldn’t ignore.
Taking care of the head will help the heart. A long-term history of anxiety can precipitate certain cardiac conditions like arrhythmia.
Linda Shaw is an avid runner, and she always dresses in costume when she races so she can spark conversation on why it’s so important to seek medical care you can trust.
An electrocardiogram (EKG) gives doctors an inside scoop on how the heart is pumping. Cleveland Clinic cardiologist Umesh N. Khot, MD, explains what an EKG reveals in this white board session.
Atrial fibrillation (A-fib), the most common arrhythmia in the United States, is an off-speed rhythm in the heart’s upper chambers. Cleveland Clinic expert sorts fact from fiction.