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  2. 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 ...

  3. The One Thing You Should Never, Ever Do if You Have Heart ...

    www.aol.com/one-thing-never-ever-heart-102500060...

    After a proper diagnosis, cardiologists say other tips can help people manage heart palpitations. Some may help prevent them in the first place or reduce the risk that they're a regular event.

  4. When Should You See a Doctor About Heart Palpitations ... - AOL

    www.aol.com/lifestyle/see-doctor-heart...

    Woman experiencing heart palpitations. It’s natural to feel your heart beating faster when you’re climbing up a flight of stairs or jogging.

  5. Roemheld syndrome - Wikipedia

    en.wikipedia.org/wiki/Roemheld_syndrome

    This is complemented by gastro-coronary reflexes [12] whereby the coronary arteries constrict with "functional cardiovascular symptoms" similar to chest-pain on the left side and radiation to the left shoulder, dyspnea, sweating, up to angina pectoris-like attacks with extrasystoles, drop of blood pressure, and tachycardia (high heart rate) or ...

  6. Cortisol awakening response - Wikipedia

    en.wikipedia.org/wiki/Cortisol_awakening_response

    Waking up earlier in the morning increases the response. [11]Shift work: nurses working on morning shifts with very early awakening (between 4:00–5:30 a.m.) had a greater and prolonged cortisol awakening response than those on the late day shift (between 6:00–9:00 a.m.) or the night shift (between 11:00 a.m.–2:00 p.m.). [12]

  7. Palpitations - Wikipedia

    en.wikipedia.org/wiki/Palpitations

    The rhythm of the palpitations may indicate the etiology of the palpitations (irregular palpitations indicate atrial fibrillation as a source of the palpitations). [1] An irregular pounding sensation in the neck can be caused by the dissociation of mitral valve and tricuspid valve , and the subsequent atria are contracting against a closed ...

  8. Orthostatic hypertension - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_hypertension

    High diastolic blood pressure measured while standing in a person who stood up shortly after waking up. When it affects an individual's ability to remain upright, orthostatic hypertension is considered as a form of orthostatic intolerance. The body's inability to regulate blood pressure can be a type of dysautonomia.

  9. 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).