12 August

The main causes of tachycardia

Tachycardia - this is not a disease but a symptom, which is characterized by an increase in the frequency of contractions of the heart muscle over 90 beats / minute.Children up to 7 years palpitation is the physiological norm, when a pulse of 100 beats / min, the rate among adolescents 80-100. Tachycardia is considered a variation rate of a healthy person under emotional stress, fatigue...

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