I notice my 78-year old mother has slowed down quite a bit in the last year. She used to be a part of the mall walking program and now it seems she can hardly get around her own house. She seems in good health. Is this decline normal?

What makes up "normal" aging still remains, in large part, a mystery. Research is ongoing to find out what's normal and expected and what is the result of our sedentary lifestyle. Getting older is strongly linked with loss of mobility and decline in function.

Studies show people between the ages of 65 and 75 start to need more help with daily activities. Almost half of all adults age 85 and older need help with household chores and self-care.

Aging can't be changed but the level of activity can be reversed in most people. Regular exercise and physical activity increases muscle strength, balance, and endurance.

A recent study from the Netherlands showed the positive effects of a task-oriented exercise program. Instead of using weights (dumbbells) for resistance training while standing in place, the women in the study carried heavy baskets and objects up and down stairs and through an obstacle course. Improved daily function was one positive outcome from the exercise program.

Have your mother examined by her primary care doctor. If she checks out okay, suggest she get back to a program of regular exercise. Most adults stick with an exercise program if they join a group, either at a health club or senior center.