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  1. www.webmd.com › heart-diseaseWebMD Heart Disease Health Center – Information About ...

    2022年11月30日 · Most heart attacks are the end result of coronary heart disease, a condition that clogs coronary arteries with fatty, calcified plaques. 2 of 5 / Symptoms & Types. View All. Heart Disease...

  2. www.webmd.com › heart › ejection-fraction-percentage-meaningEjection Fraction: Definition, Measurement, Causes, and ...

    2024年2月6日 · What Is Ejection Fraction? Ejection fraction (EF) measures the amount of blood pumped out of your heart 's lower chambers, or ventricles. It's the percentage of blood that leaves your ventricle...

  3. www.webmd.com › first-aid › normal-body-temperatureNormal Body Temperature - Low vs. High, Normal Range - WebMD

    2024年4月23日 · A normal temperature for adults is in the range of 97 F to 99 F, and for children it is 95.9 F to 99.5 F. (Photo Credit: E+ / Getty Images) Different Ways to Measure Body Temperature. There are...

  4. www.webmd.com › heart-disease › atrial-fibrillationAtrial Fibrillation (AFib) Center: Symptoms, Causes, and ...

    2020年8月18日 · What Is Atrial Fibrillation? Atrial fibrillation, or AFib, is a quivery, fluttery heartbeat. You might also hear the doctor call it arrhythmia. The Costs of Atrial Fibrillation (AFib) If you...

  5. www.webmd.com › brain › vertigo-symptoms-causes-treatmentVertigo: Causes, Symptoms, and Treatment - WebMD

    2022年12月8日 · Medically Reviewed by Carol DerSarkissian, MD on December 08, 2022. Written by Geri K. Metzger. Causes of Vertigo. Symptoms of Vertigo. Treatment for Vertigo. 3 min read. Vertigo is a...

  6. www.webmd.com › healthy-aging › what-to-know-about-vitamin-b12Tips to Manage Vitamin B12 for Older Adults - WebMD

    2023年4月7日 · Milk. Haddock. Salmon. If you are an older adult, you should be taking a supplement for B12 as well as trying to incorporate B12 into your diet. It is vital for good health and cognitive ...

  7. www.webmd.com › heart-disease › atrial-fibrillationWhy Am I Having Heart Palpitations? 14 Possible Causes - WebMD

    Caffeine is a stimulant that raises your heart rate, whehther you get it from coffee, soda, an energy drink, tea, chocolate, or another source. One study found that caffeine from coffee, tea, and...