3 doctors weighed in:

Why is a baby's heart beat faster than that of an adult?

3 doctors weighed in
Dr. Richard Bensinger
Ophthalmology
2 doctors agree

In brief: Proportional to size

Heart rates are proportional to the size of the human and in fact in all mammals the rate is generally proportional to size with just a few exceptions.
Therefore a child will have a faster basic rate than an adult on average if they are otherwise normal.

In brief: Proportional to size

Heart rates are proportional to the size of the human and in fact in all mammals the rate is generally proportional to size with just a few exceptions.
Therefore a child will have a faster basic rate than an adult on average if they are otherwise normal.
Dr. Richard Bensinger
Dr. Richard Bensinger
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