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

Your heart beats about 100,000 times a day. Sometimes it beats faster and sometimes more slowly, depending on what you're doing and whether, for instance, you're all worked up about something. So ...

Dr. Myerburg answers the question: 'How Do Pacemakers Know To Pace Faster?' — -- Question: How do pacemakers know when I need a faster heart rate, for example when I am exercising or anxious?

Cardiovascular exercise, also called cardio or aerobic exercise, keeps you and your heart healthy. This specific type of exercise gets your heart rate up and your heart beating faster for several ...

Middle-aged folks who don't exercise are putting themselves at risk of life-threatening complex heartbeat irregularities, a new study says. Adults 40 to 65 with low fitness levels had a 52% increased ...

Tachycardia is the medical term for a heart rate over 100 beats per minute (BPM). It can be a sign of emotional distress or anxiety, anemia (low levels of iron in the blood), infections, dehydration, ...

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

A resting heart rate between 60 and 100 beats per minute (bpm) is considered normal for most people, according to the American Heart Association (AHA). If your resting heart rate is over 100 bpm, you ...

Feeling your heart race can be an unsettling experience. Whether it happens during a moment of stress, excitement or seemingly out of nowhere, a racing heartbeat is often dismissed as just a temporary ...

If the conventional wisdom, "Move around more. Eat less," makes you think weight loss isn't rocket science, you may be surprised to learn how exact a science it can be. As it turns out, not all ...