Biological aging offers clues to long-term health after Fontan surgery

Our birthdays tell us how long we have lived, but not necessarily how our bodies are aging. Biological age reflects the condition and function of our cells and tissues, shaped by genetics, lifestyle, environment and disease. In people with chronic conditions such as cancer, kidney disease and heart disease, researchers have observed signs of aging that appear earlier than expected for a person's age. This is known as accelerated biological aging.

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