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Can Bones Get Thicker in Adulthood? A Look at Bone Growth and Remodeling

While peak bone mass is reached by the end of the second decade of life, with skeletal growth in length ceasing in early adulthood, it is a fact that **bones can get thicker in adulthood**. This increase in diameter, known as appositional growth, occurs in response to stress and mechanical loading, such as that from weight-bearing exercise.