Studies show that physical activity slows the aging process and increases seniors’ life span. The positive health effects of exercise for seniors and elders go deep, down to the cellular level. To reap these benefits for as long as possible active seniors should adopt a routine that gently prepares their body for the increased demand of an activity or exercise. The American Academy of Orthopedic Surgeons (AAOS) explains that a good warm-up prepares a person’s body for more intense activity.