Human Life Cycle: Stages, Nutrition and Aging Secrets

Human life stages require evolving nutritional needs, from puberty to aging. Discover energy-boosting tips for over-50s and secrets from centenarians.

Doctor checking boys pulse

Normal Pulse Rate for a 12-Year-Old

Throughout development from infancy to adulthood, normal vital signs change. Due to anatomical differences, what is normal for one age group could be abnormal for another. Normal pulse rate changes substantially from infancy to middle childhood. By age 12, the normal pulse rate approximates that of an adult.

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