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2. Ectopic pacemaker - Wikipedia

   en.wikipedia.org/wiki/Ectopic_pacemaker

   Isolated ectopic beats frequently cause no symptoms, although the most common symptom is the perception of a 'missed beat'. This occurs because the person notices the prolonged gap between the early (ectopic) beat and the next normal beat. Palpitations; Feeling faint [4]

3. Skipping Heartbeat: Nuisance or Danger? - AOL

   www.aol.com/news/skipping-heartbeat-nuisance...

   Normally, there is an electrical highway from the top chambers (atria), through a gate between the top and bottom chambers, and then through the bottom chambers (ventricle) of the heart.

4. Ectopic beat - Wikipedia

   en.wikipedia.org/wiki/Ectopic_beat

   Ectopic beat is a disturbance of the cardiac rhythm frequently related to the electrical conduction system of the heart, in which beats arise from fibers or group of fibers outside the region in the heart muscle ordinarily responsible for impulse formation (i.e., the sinoatrial node).

5. Postural orthostatic tachycardia syndrome - Wikipedia

   en.wikipedia.org/wiki/Postural_orthostatic...

   Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...

6. Heart attacks are at a record high – here are the symptoms ...

   www.aol.com/heart-attacks-record-high-symptoms...

   Hospital cases at new high as health chiefs raise fears that those with symptoms are failing to seek help Heart attacks are at a record high – here are the symptoms you can’t ignore Skip to ...

7. Premature ventricular contraction - Wikipedia

   en.wikipedia.org/wiki/Premature_ventricular...

   Although there are many possible symptoms associated with PVCs, PVCs may also have no symptoms at all. PVCs may be perceived as a skipped heart beat, a strong beat, palpitations, or lightheadedness. They may also cause chest pain, a faint feeling, fatigue, or hyperventilation after exercise. [2] Symptoms may be more pronounced at times of stress.

8. Cardiac arrest - Wikipedia

   en.wikipedia.org/wiki/Cardiac_arrest

   While a heart attack refers to death of heart muscle tissue as a result of blood supply loss, cardiac arrest is caused when the heart's electrical system malfunctions. Furthermore, the American Heart Association explains that "if corrective measures are not taken rapidly, this condition progresses to sudden death.

9. Heart-healthy habits may improve cardiovascular health, slow ...

   www.aol.com/heart-healthy-behaviors-improve...

   A heart healthy lifestyle that follows the Life Essential 8 guidelines that include a quality diet and regular exercise can help slow biological aging and improve cardiovascular health ...