Cognitive decline in senior dogs resembling Alzheimer's disease affects quality of life and welfare, with cognitive enrichment, environmental modification, and medical management offering meaningful improvements.
Cognitive dysfunction causes significant welfare compromise through disorientation, anxiety, disrupted sleep, and loss of established routines that dogs find reassuring. Dogs with moderate to severe CDS show signs of confusion and distress that their owners often mistakenly attribute to normal aging rather than a treatable condition. The progressive nature means ongoing welfare monitoring and management adjustment are needed. Addressing cognitive dysfunction improves both the dog's quality of life and the strength of the human-animal bond by maintaining the recognizable personality and responsiveness owners value. End-stage cognitive dysfunction that causes severe distress requires welfare-centered discussion of euthanasia timing.