The Language of Ageing
When senior pets slow down, withdraw, or change routines, they're often communicating underlying health changes rather than simply "getting old". Learning to recognise these signs early can make a meaningful difference.
The Language of Ageing: How Your Pet Tells You Something Has Changed
Because ageing does not announce itself with words — only with moments you almost miss.
At a Glance
Your senior dog has stopped greeting you at the door. Your older cat no longer jumps onto the windowsill and has stopped grooming herself the way she used to. Your pet is slowing down, sleeping more, eating differently, hesitating where they never hesitated before. You have noticed these moments, but you are not sure whether they mean something — or whether this is just what getting old looks like.
It means something. Veterinary behaviourists estimate that 85% of cognitive dysfunction in dogs goes undiagnosed — not because anyone fails their pet, but because the early signs look so much like “just getting old” that they never reach the vet’s attention. What many pet parents call dog dementia is a real, diagnosable condition. In senior cats, the picture is even less visible: cats mask pain and decline with an evolutionary skill that makes early detection genuinely difficult.
This article reframes what you are seeing. The walk that ends early, the greeting that fades, the litter box your cat has started avoiding — these are not failures. They are communication. Your pet is telling you something has changed, in the only language they have. The question is whether you have the framework to hear it.
The Full Guide
It usually begins with something small. The walk that used to last forty minutes now ends at twenty — not because you cut it short, but because your dog sat down on the pavement and looked at you with an expression you had never seen before. The sofa your cat reached in a single, silent leap for twelve years now requires a detour: floor to chair to armrest to cushion, each landing a little heavier than the last. The tail still wags when you come home, but the body behind it moves differently. The purr is still there, but the cat who once met you in the hallway now waits for you to come to her.
You noticed. Of course you did. But you told yourself it was nothing. Just age. Just a slow day. Just the weather, the heat, the cold, the marble floor that has always been slippery.
It might not be nothing.
Here is what most pet parents do not realise: the behavioural shifts that accompany ageing are not random. They follow patterns. They have names. And many of them correspond to treatable conditions — pain, cognitive decline, sensory loss, metabolic disease — that a vet can address if they are caught early enough. The gap is not in veterinary medicine. The gap is in observation. The signs are there. What is missing is the language to describe them and the confidence to act on what you see.
This article gives you that language.
The Moment You Notice
Pet parents often describe this as: “he is just slowing down,” “she is not herself any more,” or “I cannot explain it — something is just off.” That instinct is worth listening to.
There is a moment that every pet parent recognises, even if they cannot quite name it. It is not dramatic. Nobody rushes to the vet. It is the evening you realise your dog did not follow you into the kitchen for the first time in nine years. It is the morning your cat was sitting in a patch of sunlight she has never favoured before, and when you called her name, she turned her head a beat too slowly.
These moments accumulate. A dog who once bounded up three flights of stairs in your apartment building now pauses at the landing between the first and second floors. A cat who groomed herself with meticulous precision now has a dull patch behind her ears that she seems to have forgotten. Your Labrador stops picking up his favourite ball. Your Persian stops jumping onto the bed. Your Indie, who has greeted every family member at the door since she was a puppy, now lifts her head from her spot near the balcony but does not get up.
The instinct is to explain it away. And sometimes the explanation is simple — a hot afternoon, a full stomach, a lazy mood. But when the pattern repeats across days and weeks, it is no longer a mood. It is a message.
What Withdrawal Actually Means
Pet parents often describe this as: “he has become a different dog,” “she has lost interest in everything,” or “he just lies there.” What looks like personality change is often pain, cognitive decline, or sensory loss.
When a pet withdraws from activities they once enjoyed, the most common assumption is the most forgiving one: they are just getting old. But withdrawal is not a personality trait. It is a behaviour — and behaviours have causes.
Dogs
A dog who stops greeting you at the door may be experiencing joint pain that makes standing up from a resting position uncomfortable. Hip dysplasia in Labradors, elbow arthritis in German Shepherds, intervertebral disc disease in Dachshunds — these conditions develop gradually, and dogs are remarkably skilled at compensating until the pain crosses a threshold. A dog who stops playing fetch may not have lost interest. He may have learned that the burst of speed required to chase the ball is followed by an hour of discomfort he cannot describe to you.
Hearing loss is another common and commonly missed cause. It develops so gradually that the dog adjusts without anyone noticing. The dog who no longer comes when called, who seems to ignore you from the next room, who startles when you touch him from behind — he is not being stubborn. He cannot hear you. Apartment living complicates this: the ambient noise of a busy building — generators, lifts, construction, traffic — can mask both the hearing loss and the dog’s compensatory behaviours.
And then there is cognitive decline. A dog who withdraws from social interaction, who stops initiating play, who seems confused in familiar spaces, who starts staring at walls or getting stuck behind furniture — this may be the early stages of Canine Cognitive Dysfunction Syndrome, what many pet parents and vets call dog dementia.
Cats
Cats are harder. Cats mask pain with an evolutionary precision that makes early detection genuinely challenging. A cat in pain does not limp and whimper. She simply stops doing the thing that hurts. The jump she no longer makes, the shelf she no longer visits, the play session she no longer initiates — these absences are the symptoms. And absences, by definition, are easy to miss.
Reduced grooming is one of the most reliable early signals in senior cats. A cat who has always kept herself immaculately clean and now has matted fur behind her ears or along her spine is telling you something. She may have arthritis in her spine or shoulders that makes twisting to groom painful. She may have dental pain that makes the grooming motion uncomfortable. She may be experiencing the feline equivalent of cognitive decline.
Litter box changes are another critical signal. A cat who has used her litter box reliably for years and now eliminates beside it, or in a different room, is not being spiteful. The sides of the litter box may have become too high for arthritic joints. The location may require a jump she can no longer make. Or the cognitive mapping that once made the path automatic has begun to fragment. If your litter box is in a bathroom — where floors tend to be smooth and wet — the combination of a high-sided box and a slippery approach can turn a routine act into an ordeal for a senior cat.
The Clinging Paradox
Pet parents often describe this as: “she follows me everywhere now — even to the bathroom,” or “he will not let me out of his sight.” Increased attachment in a senior pet is not deeper love. It is often anxiety.
Not all ageing pets withdraw. Some do the opposite. They become shadows. A dog who never had separation anxiety suddenly cannot tolerate you stepping onto the balcony. A cat who was always independent now sits on your lap the moment you sit down and cries when you stand up.
This is not love intensifying. It is the world becoming unpredictable. When a pet’s senses dull, when spatial memory fragments, when the circadian rhythm that once structured their day begins to break down, the one constant is you. You are the fixed point in a landscape that no longer makes reliable sense. The clinging is a coping strategy, not a personality evolution.
In dogs, veterinary behaviourists call this hyper-attachment, and it is a recognised sign of cognitive dysfunction. In cats, increased vocalisation — the yowling at 3 AM, the insistent meowing when you leave a room — often accompanies the same underlying disorientation. Both deserve attention, not dismissal.
Subtle Signs Worth Noting
These are the signs of ageing in dogs and cats that do not look urgent but may be the earliest indicators of treatable conditions. If a change persists for more than two weeks, it is worth mentioning to your vet.
Dogs
Panting at rest. If your dog pants when the room is cool and he has not exerted himself, this can indicate pain, anxiety, or respiratory compromise. It is one of the most overlooked pain indicators in senior dogs.
Pacing at night. A dog who sleeps heavily during the day and paces the apartment between midnight and 4 AM is not restless. This is the sundowning pattern — also called sundowner syndrome — a hallmark of cognitive dysfunction where agitation peaks after dark. In apartment buildings, this is the sign that most directly affects the household and the neighbours.
Selective eating. A dog who was never fussy and now picks at his food, eats only soft items, or drops kibble from the side of his mouth may have dental pain. If your old dog has stopped eating with enthusiasm — or stopped eating altogether — do not wait. Periodontal disease affects 80% of dogs by age 3 and progresses silently. By the senior years, it is often severe.
Hesitating before stairs or jumps. The half-second pause before a dog commits to a jump or a flight of stairs is the moment the calculation changes. He is assessing whether the movement will hurt. On hard floors — marble, tile, polished stone, or even hardwood — the hesitation is amplified by the fear of slipping. Traction disappears on smooth surfaces, and a dog who has slipped once remembers.
Cats
Reduced grooming. A dull coat, matted patches, or visible dandruff in a cat who was previously immaculate. Often the first sign of spinal arthritis or pain.
Litter box changes. Eliminating beside the box rather than inside it, or choosing a new location entirely. In senior cats, this is often a mobility issue disguised as a behavioural one.
Hiding. A cat who has always been social and now spends hours behind the sofa, inside a cupboard, or under the bed. Cats hide when they are in pain or distress. It is not a preference. It is a response.
Night vocalisation. Yowling, crying, or persistent meowing between midnight and dawn — especially in a cat who was previously quiet at night. This is the feline equivalent of sundowning, and it is one of the most distressing signs for families in apartment settings.
When to Act, When to Observe
Not every slow day is a crisis. Ageing is a process, not an event, and some degree of reduced energy and changed routine is natural. The question is not whether your pet is changing — they are. The question is whether the change follows a pattern, whether it is progressing, and whether it corresponds to something a vet can address.
The two-week rule: If a behavioural change — reduced appetite, altered sleep, new reluctance, changed litter habits, social withdrawal — persists for more than two weeks, it is worth a vet conversation. Two weeks filters out bad days, bad weather, and bad moods. What remains after two weeks is signal, not noise.
Urgent signs: Sudden collapse, seizures, acute disorientation (circling, head pressing, falling), sudden blindness, or refusal to eat for more than 48 hours require immediate veterinary attention. These are not the gradual shifts this article describes. These are emergencies.
Start a log. The most useful thing you can bring to a senior pet’s vet appointment is not a worried feeling — it is a record. Note the date, the behaviour, the time of day, and how it compares to last week. A vet who sees “pacing at night started 3 weeks ago, now happening 4–5 nights per week, worse after 10 PM” can act on that. A vet who hears “he seems a bit off” has much less to work with.
The Multi-Generational Household Advantage
If you share your home with a parent or grandparent — as more families do today — you have an advantage most pet wellness content overlooks entirely.
In multigenerational households — and with housing costs rising, these are more common than a generation ago — the person who spends the most unstructured time with the family pet is often the eldest family member. While younger adults are at work or commuting, a grandparent or retired parent is sitting in the living room with the dog at their feet. They are there when the cat skips her afternoon meal. They notice when the dog stops coming to the kitchen at tea time. They see the 3 AM pacing because they, too, are awake.
These observations are gold. The grandmother who says “he does not come to me any more” or “she has stopped sleeping in her usual spot” is detecting the earliest, subtlest shifts in behaviour — the ones a busy working pet parent might not register for weeks. In families where elders have traditionally lived alongside animals, this attentiveness is not a new skill. It is an inherited one.
What is new is the framework to translate those observations into action. If your grandmother says something has changed, write it down. Date it. Share it with the vet. Modern veterinary science is now building tools — DISHAA for dogs, VISHDAAL for cats — to formalise what intuition already sensed. The screens and scoring systems are new. The quality of attention they require is not.
What the Science Says
Multigenerational households have always observed animals with a particular attentiveness — the grandmother who knew the dog was unwell before anyone else did. Veterinary behaviourists now estimate that 85% of canine cognitive dysfunction cases go undiagnosed (Salvin et al., 2010), largely because the early signs are dismissed as normal ageing. The 2023 AAHA Senior Care Guidelines recommend structured behavioural monitoring from age 7 for dogs and age 10 for cats — exactly the kind of observation that comes naturally to someone who sits with the pet all day. In December 2025, a 12-member working group of leading veterinary neurologists formally adopted the DISHAA framework as the diagnostic standard for canine cognitive dysfunction and recommended screening from age 7. The tools are catching up to the instinct. Your grandmother was right. Science just took a little longer to prove it.
For cats: A dedicated VISHDAAL guide is coming. In the meantime, the signals described in this article — reduced grooming, litter box changes, hiding, night vocalisation, and increased clinginess — are the key domains to watch.
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The bond between you and your ageing pet is not diminishing. It is deepening. It is asking more of you — more attention, more patience, more willingness to learn the language of a body that is changing. That is not a burden. It is the most important work of pet parenthood.
Important: Always Friday does not replace in-person veterinary diagnosis or treatment. This article is an educational resource designed to help you observe your pet more carefully and have better conversations with your vet. If you are concerned about any behavioural change in your senior pet, please consult your veterinarian. When in doubt, consult your vet.
Sources Cited in This Article
1. Salvin HE et al. (2010). “Under diagnosis of canine cognitive dysfunction: a cross-sectional survey of older companion dogs.” The Veterinary Journal. (1.9% diagnosis rate finding; 85% undiagnosed estimate.)
2. Landsberg G, Mađari A, Žilka N. Canine and Feline Dementia. Springer, 2017. (DISHAA and VISHDAAL framework development.)
3. Dhaliwal R et al. (2023). “2023 AAHA Senior Care Guidelines for Dogs and Cats.” Journal of the American Animal Hospital Association. (Screening recommendations, senior patient definitions.)
4. Olby NJ et al. (2025). “The Canine Cognitive Dysfunction Syndrome Working Group guidelines for diagnosis and monitoring.” Journal of the American Veterinary Medical Association. Dec 24, 2025. DOI: 10.2460/javma.25.10.0668. (DISHAA formally adopted; screening from age 7.)
5. Yarborough S et al. (2022). “Evaluation of cognitive function in the Dog Aging Project.” Scientific Reports. (15,019 dogs; 52% increased risk per year of age.)
Always Friday does not replace in-person veterinary diagnosis or treatment. When in doubt, consult your vet.