As people over 45 try to stay — or get — in shape, they run the danger of overdoing it and injuring themselves according to the Consumer Products Safety Commission and the American Academy of Orthopedic Surgeons (AAOS).

Yes, exercise is good for us, but we need to pay heed to our bodies' needs for recovery time and variety. Mix it up. Alternate strength training and aerobic activity. Include some yoga or other stretching. For more suggestions on successful fitness routines see "'Boomeritis': a condition that may impact you."