A member asked:

My cousin have her heart beating very fast which is not normal to me so help me. she does not taking any medication. she is only 15 years old.

A doctor has provided 1 answer

Confusing issue: The normal heart rate for an alert person at 14 is 60-100 bpm. It should drop to 50-90 in sleep. If the rate is above this and there are no issues like anxiety or recent exertion, the kid needs an evaluation. Subtle problems like an overactive thyroid can start with this as a first sign.

Answered 7/23/2014

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