high heart rate causes - SPORTS
Runner's World: Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high AOL: What Happens if Your Heart Rate Is Too High During Exercise?
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It may be surprising when your wearable device informs you that your heart rate variability is high or low, but what does it mean? The trigger causes the part of your nervous system that regulates heart rate and blood pressure to drop suddenly, reducing blood flow to the brain and causing you to faint. A detailed history and exam may identify the cause of syncope. Often, an EKG or additional heart testing also will be recommended to look for any abnormal heart rhythms.
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Rarer causes include heart valve disorders, amyloidosis, extremely low heart rate, Addison’s disease and Lewy body dementia. Some medications may cause orthostatic hypotension. Investigation into the cause of orthostatic hypotension begins with a review of your medical history, discussion of your symptoms and a physical exam. Onlymyhealth on MSN: Heart palpitations after eating: Causes, trigger foods, and when to worry And most often, those affected are women in their 20s and 30s. Inappropriate sinus tachycardia doesn't cause heart damage, though patients may feel uncomfortable with the elevated heart rate.
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Some patients may have other associated symptoms such as fatigue, headache, chest discomfort, shortness of breath or light-headedness.