3. Sinus Tachycardia

A heart rate that is too fast is sinus tachycardia. This form of sinus arrhythmia occurs when a person experiences more than 100 heartbeats per minute. There are many triggers for sinus tachycardia including stress, anxiety, pain, medications, and strenuous exercise. Substances such as caffeine, nicotine, and recreational drugs can also cause the heart to beat faster.

sinus trachycardia caffeine increase heartbeat Shidlovski / Getty Images


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