Their immune system also becomes less responsive, and they are less able to ward off infection. The incidence and malignancy of tumors increases with age. The signs of age are more evident when the pet is in a poor nutritional state or when the level of stress is increased. There are several things owners can do to keep their older pet in good condition. Providing a high-quality diet formulated for older pets will ensure balanced nutrition without extra calories.
Moderate exercise helps maintain healthy heart and lungs and muscle tone.
Proper diet and moderate exercise will also help keep off extra pounds that could contribute to other health problems, the same as older humans. Older pets have become creatures of habit and enjoy predictable days. Stress can be prevented by not making changes in your pet's environment or daily schedule. If changes are necessary, make them gradually and maintain as much of the usual routine as possible. Sudden changes in an animal's condition, behavior, stamina, or appetite indicate a health problem and not simply aging.