Chronic stress in cats directly causes and exacerbates multiple disease conditions, making stress reduction a therapeutic as well as preventive welfare intervention.
Stress is not merely a subjective state in cats - it has direct physiological consequences including immunosuppression, bladder epithelium vulnerability (triggering FIC), and gastrointestinal dysfunction. Managing environmental stressors is therefore primary disease prevention, not merely welfare enhancement. Environmental modification - providing adequate resources, vertical space, predictable routines, and choice - reduces the disease burden caused by chronic stress in domestic cats.