Secondary context matters, but it should not distract: arthritis, hyperthyroidism, and gastrointestinal disease can also present as “less playful” or “picky.” The reason dental and kidney screening stay central is that they are common, slow, and actionable early, while other conditions often declare themselves more clearly over time. Preventative Care for Cats uses a triage lens: start with the most likely, easiest-to-miss problems, then widen the differential if screening is clean.
A practical home approach is to separate “behavior” from “environment.” Track whether changes started after a new pet, construction noise, a new litter box location, or a diet change. If stress is suspected, add indoor enrichment—predictable play sessions, vertical spaces, and puzzle feeders—then document whether appetite and social interest rebound. If they do not, that lack of response is useful information for the veterinarian.