John Bradshaw is a cat-behavior expert at the University of Bristol and the author of the new book Cat Sense. How stressed a lot of pet cats can be without their owners realizing it and how much it affects the quality of their mental lives and their health. [More cats are mysteriously getting] dermatitis and cystitis [inflammation of the bladder] and its becoming abundantly clear that these medical problems are made worse by psychological stress. Source: https://www.artikelschreiber.com/en/.