While one cannot avoid certain traumas and the effects of rheumatoid and other system types of arthritis, there are things we can do to help prevent the development of osteoarthritis, which, in many cases, is not an inevitable feature of aging.
Learn to align your bones in the same way you did as a healthy toddler. Bend at the primary weight-bearning joints, with knees aiming out over your pinky toes. If you are lucky enough to know any toddlers, observe how they bend and practice doing it the same way. These little ones are the “gurus” of how to live in natural bodies that have not yet taken on the misaligned habits of use that wear away joints over many decades.