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

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

    A “normal heart rate” for adults ranges from 60-100 beats per minute (bpm), says Brett Victor, M.D., F.A.C.C., cardiologist at Cardiology Consultants of Philadelphia. However, oftentimes lower ...

  3. Premature ventricular contraction - Wikipedia

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

    Furthermore, very frequent (over 20% of all heartbeats) PVCs are considered a risk factor for arrhythmia-induced cardiomyopathy, in which the heart muscle becomes less effective and symptoms of heart failure may develop. [2] Ultrasound of the heart is therefore recommended in people with frequent PVCs.

  4. Caffeine doesn't give you heart palpitations, study finds - AOL

    www.aol.com/news/2016-01-26-caffeine-doesnt-give...

    To check, Marcus and colleagues examined 1,388 people, with an average age of 72, taking part in a larger heart study. About 60 percent said they drank some sort of caffeinated product every day.

  5. 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).

  6. Premature heart beat - Wikipedia

    en.wikipedia.org/wiki/Premature_heart_beat

    A premature heart beat or extrasystole [1] is a heart rhythm disorder corresponding to a premature contraction of one of the chambers of the heart. Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions. Often they cause no symptoms but may present with fluttering in the chest or ...

  7. Many ‘healthy’ adults may have a troubling heart condition ...

    www.aol.com/many-healthy-adults-may-troubling...

    More than a quarter of “healthy” adults over 60 have undiagnosed heart valve disease, a new study from the University of East Anglia in England finds. motortion – stock.adobe.com

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