As pets or for showing, American Shorthairs are low-maintenance cats. These cats are not only beautiful, but healthy, easygoing, and affectionate. Males are usually larger than females, averaging 11 to 15 pounds, while females may weigh 6 to 12 pounds. American Shorthairs often continue to grow until 3 or 4 yeard old and generally require only annual vaccinations and veterinary checkups. With a quality diet and plenty of tender loving care, they can live 15 years or longer. No wonder the American Shorthair is one of the most popular cat breeds!