Effects of Aging
In general, dogs age in a manner similar to humans. Their bodies begin to develop problems which are less common at younger ages, they are more prone to serious or fatal conditions such as cancer, stroke, etc., they become less mobile and may develop joint problems such as arthritis, and in old age often become less physically active. Additionally, they become less able to handle change, including wide climatic or temperature variation, and may develop dietary or skin problems or go deaf. In some cases incontinence may develop and breathing difficulties may appear.
- "Aging begins at birth, but its manifestations are not noticeable for several years. The first sign of aging is a general decrease in activity level, including a tendency to sleep longer and more soundly, a waning of enthusiasm for long walks and games of catch, and a loss of interest in the goings on in the home."
The most common effects of aging are:
- Loss of hearing
- Loss of vision (cataracts)
- Decreased activity, more sleeping, and reduced energy (in part due to reduced lung function)
- Weight gain (calorie needs can be 30–40% lower in older dogs)
- Weakening of immune system leading to infections
- Skin changes (thickening or darkening of skin, dryness leading to reduced elasticity, loss or whitening of hair)
- Change in feet and nails (thicker and more brittle nails makes trimming harder)
- Arthritis and other joint problems
- Loss of teeth
- Gastrointestinal upset (stomach lining, diseases of the pancreas, constipation)
- Weakness muscles and bones
- Urinary issues (incontinence in both genders, and prostatitis/straining to urinate in males)
- Mammary cysts and tumors in females
- Senility
- Heart murmurs
- Diabetes
Read more about this topic: Aging In Dogs
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