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2. Palpitations - Wikipedia

   en.wikipedia.org/wiki/Palpitations

   Palpitations are perceived abnormalities of the heartbeat characterized by awareness of cardiac muscle contractions in the chest, which is further characterized by the hard, fast and/or irregular beatings of the heart. [1] Symptoms include a rapid pulsation, an abnormally rapid or irregular beating of the heart. [1]

3. Tachycardia - Wikipedia

   en.wikipedia.org/wiki/Tachycardia

   Tachycardia, also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. [1] In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults. [1] Heart rates above the resting rate may be normal (such as with exercise) or abnormal (such as with electrical problems within the heart).

4. What’s the Difference Between a Normal and Dangerous Heart Rate?

   www.aol.com/difference-between-normal-dangerous...

   High heart rates with associated symptoms such as chest tightness, palpitations or heart pounding/racing, fainting, dizziness, lightheadedness, shortness of breath, or fatigue, it may suggest an ...

5. Does your heart beat faster when you stand or sit up? Learn ...

   www.aol.com/does-heart-beat-faster-stand...

   The most common symptoms of POTS are rapid heart rate within 10 minutes of standing or sitting up, lightheadedness and fainting, fatigue, brain fog, nausea, and shortness of breath.

6. Atrial fibrillation - Wikipedia

   en.wikipedia.org/wiki/Atrial_fibrillation

   AF is usually accompanied by symptoms related to a rapid heart rate. Rapid and irregular heart rates may be perceived as the sensation of the heart beating too fast, irregularly, or skipping beats (palpitations) or exercise intolerance and occasionally may produce anginal chest pain (if the high heart rate causes the heart's demand for oxygen ...

7. Why Is My Heart Rate High On Easy Runs? - AOL

   www.aol.com/news/why-heart-rate-high-easy...

   There could be a number of reasons you're feeling a rapid beat. Here's when to worry about it. Skip to main content. Subscriptions; Animals. Business. Entertainment. Fitness. Food. Games ...

8. Panic attack - Wikipedia

   en.wikipedia.org/wiki/Panic_attack

   Panic attacks are associated with many different symptoms, with a person experiencing at least four of the following symptoms: increased heart rate, chest pain, palpitations (i.e. feeling like your heart is pounding out of your chest), difficulty breathing, choking sensation, nausea, abdominal pain, dizziness, lightheadedness (i.e. feeling like ...

9. What Is Heart Disease? Everything You Need to Know - AOL

   www.aol.com/heart-disease-everything-know...

   Rapid or irregular heart rate (Learn more about ED.) seb_ra / iStock. ... Often, heart attack symptoms are immediate and intense, and other times they develop gradually. The longer you wait to get ...