Your bones are alive and in a constant state of change, a process known as remodeling in which your bone tissue is perpetually resorbed and replaced. This bone remodeling process is affected by the force of gravity, the pull of your muscles on your skeleton, your nutritional status and other circumstances. Though bone remodeling occurs throughout your lifespan, your skeleton experiences the most rapid increase in bone density and strength during childhood.
Your bones cease growing in length between 16 and 18 years of age, though bone density continues to increase up to and through your mid-20s. At this point, the balance between bone loss and bone construction remains stable, with little net bone loss or gain. Once you reach your early 30s, however, the process of bone loss begins to outperform bone construction, and bone loss increases gradually. This is a natural part of the aging process.
So what can you do to keep your bones strong? The following strategies can help you build or preserve bone mass and density as you age.