Cognitive dysfunction syndrome (CDS) in cats causes dementia-like changes in older animals, with welfare implications for confusion, disorientation, altered sleep cycles, and loss of familiar social bonds.
CDS is fundamentally a welfare condition. Affected cats experience confusion and disorientation in familiar environments, disrupted sleep causing nighttime distress, and the loss of previously established social bonds and routines. Nighttime vocalization may reflect anxiety, pain, confusion, or all three simultaneously - and the distress it causes to both cat and owner is substantial. Welfare-centered management focuses on reducing environmental complexity to minimize confusion, maintaining consistent routines, providing nighttime comfort and containment, managing concurrent pain conditions that worsen behavioral signs, and having honest quality-of-life conversations as dementia progresses.