To add on british Shorthairs can also get hypertrophic cardiomyopathy. Hypertrophic cardiomyopathy (hi-pr-tro-phic card-e-o-me-yo-pathy) is a disease of the heart, in which the walls thicken and the heart gets bigger. British Shorthairs will mostly get this disease at midlife. Right now there is really no way to get rid of it, but you can treat your cat with medicine that will remove pool fluids. Atenolol, metoprolol, and propranolol are used to slow the heart rate down. Low salt diets and calcium low salt diets may also be
