1. Exercise prevents premature aging. As our animals age, their lean muscle mass diminishes. Regular exercise and good nutrition maintain lean muscle strength. If regular exercise isn’t part of your lifestyle, start immediately, even if it’s just one brisk 20-minute walk each day. 2. Exercise maintains strong bones. Exercising skeletal muscle mass directly works the bone mass and helps maintain healthy bone density. 3. Exercise helps with arthritis. Contrary to conventional t