5 Stretching Exercises for Seniors—or Anyone Who Feels Achy Laura Williams Bustos, MS, ACSM EP-C 5 Plank Variations for a Full-Body Workout Replay Video Aging doesn't mean out of shape We all like to joke about our aching, aging bones and the way our bodies set off a symphony of groans when we rise in the morning. And for a lot of us, getting older does, in fact, mean getting, er, creakier. But while it's easy to assume that taking a few (or a lot) more trips around the sun automatically equates to a stiffer, less-limber body, that's not strictly true.