Rheumatoid arthritis (RA) is an autoimmune disease with symptoms that vary from person to person and may include joint pain, swelling and stiffness.
Health Problems & Life Expectancy. The typical West Highland Terrier lives about 12-16 years. Of course, individual dogs can have a life span outside that range based on care and pure luck. Like all dog breeds, Westies are prone to certain diseases, disorders, and behavioral problems.
Caring For The Senior Collie. On average, Collies typically live 10 to 13 years, but many go well beyond the age of 13 and I have heard of a few Collies reaching 15 and beyond. Generally it is thought that the smaller the dog, the longer lived and the bigger the dog, the shorter lived. Just like with people, old age is relative.