As part of a list of tips for healthy aging, Berkeley Wellness notes the importance of keeping your bones strong:

Women over 65 should be screened for osteoporosis via a bone density test, as should women age 50 to 64 if they have risk factors such as smoking or a family history of the disease. To keep bones healthy, quit smoking; do weight-bearing exercise such as strength training with weights, jumping rope, running, or playing tennis. Get adequate amounts of vitamin D and calcium. By age 65, about 6 percent of men also have osteoporosis, so older men should discuss their risk factors with their doctors, and get a bone density test if their doctors recommend one.

However old you are, taking care of your bones is good advice!