Breed-specific health issues in cats: Managing costs and care in Australia
Explore common breed-specific health risks in cats and how early care can help support their long-term wellbeing.
Read more8 September 2026
One minute your cat is curled up peacefully on the couch. Next, they’re sprinting down the hallway, launching themselves onto furniture and racing from room to room as though they’re being chased by something only they can see.
If this sounds familiar, you’ve witnessed the cat zoomies.
These sudden bursts of energy are commonly known as zoomies, while the term ‘frenetic random activity periods’ (FRAPs) is often used to describe them. In most cases, they’re a normal part of feline behaviour and can be a way for cats to release energy and express some of their natural instincts.
But why do cats get them, and why do they so often seem to happen just as you’re getting ready for bed?
Cat zoomies are short periods of intense activity that can seemingly come out of nowhere. Your cat might suddenly start running through the house, jumping onto furniture, darting around corners or changing direction at full speed.
They can look chaotic, but zoomies generally don’t mean anything is wrong.
Vet Voice explains that zoomies are a normal part of cat behaviour and are particularly common in kittens and younger cats, which generally have more energy to burn.
There isn’t necessarily one single explanation for every case of the zoomies. Instead, several aspects of feline behaviour may contribute to these energetic episodes.
Cats spend plenty of time resting, so after a long period of inactivity, they may suddenly have a lot of energy ready to go.
This can be particularly noticeable with indoor cats. While an outdoor cat may encounter opportunities to climb, explore, chase and investigate its environment, an indoor cat’s opportunities for physical activity can be more dependent on the enrichment available at home.
Veterinary behaviourist Dr Alison Gerken explains that playful zoomies can occur after a cat has been inactive and suddenly becomes energised. These bursts of activity provide an outlet for that pent-up energy.
Regular play can therefore be an important part of your cat’s routine. Wand toys, balls, climbing structures, scratching posts and other forms of enrichment can encourage them to move and give them an appropriate outlet for their energy.
Your house cat might not need to hunt for dinner, but that doesn’t mean their natural predatory instincts have disappeared.
Cats are instinctively equipped to stalk, chase, pounce and capture prey. A sudden sprint across the living room, sharp turn around the sofa or leap onto a piece of furniture can resemble some of the movements involved in hunting.
Veterinary experts suggest zoomies may provide cats with an opportunity to express these instinctive behaviours, particularly when they don’t otherwise need to hunt for food.
You can encourage this natural behaviour through interactive play. Toys that can be chased, stalked or pounced on can help give your cat an outlet for their inner hunter.
If your cat’s favourite time to race around the house seems to be early in the morning or just as you’re settling down for the evening, there may be a biological reason.
Cats are generally considered crepuscular, meaning they’re naturally most active around dawn and dusk rather than being strictly nocturnal.
Vet Voice notes that this helps explain why cats can experience higher levels of energy during the late evening and early morning.
For an indoor cat, that natural activity pattern doesn’t disappear just because there’s no prey to chase. Instead, you might see it expressed as play, exploration – or a few high-speed laps around the house.
If nighttime zoomies are regularly disturbing your sleep, an interactive play session during the evening may help give your cat another opportunity to use some of that energy.
Sometimes zoomies may simply be associated with excitement or stimulation.
A favourite toy coming out, playing with another cat, catnip or silvervine, or even an unexpected noise or activity around the home may be enough to trigger an energetic response.
Researchers from the University of Adelaide’s School of Animal and Veterinary Science have noted that excitement or a sudden increase in stimulation may be among the triggers for zoomies. They also point out that scientific research specifically investigating zoomies remains relatively limited, so there isn’t always a definitive explanation for every burst of activity.
In other words, sometimes your cat may simply be feeling playful and excited.
Perhaps one of the stranger versions of feline zoomies is the post-litter tray sprint.
Some cats appear to race out of their litter tray immediately after doing their business.
Why?
One theory relates to the vagus nerve. Veterinary behaviourist Dr Elizabeth Stelow explains that defecation stimulates the vagus nerve and can produce a feeling of relief. Depending on the individual cat, that feeling may contribute to excitement and a subsequent burst of activity.
However, post-toilet behaviour is worth paying attention to. If your cat appears uncomfortable, strains to urinate or defecate, cries in the litter tray or displays other unusual toileting behaviour, it’s important to speak with your veterinarian rather than assuming it’s simply another case of the zoomies.
If you have a kitten, you may feel like the zoomies are less of an occasional event and more of a daily routine.
That’s not particularly surprising.
Kittens and young cats generally have high energy levels, and running, jumping, chasing and pouncing also give them opportunities to practise coordination and other physical skills.
Veterinary sources consistently note that zoomies tend to be particularly common in younger cats and kittens.
As your cat gets older, you may notice these energetic bursts become less frequent or intense – although plenty of adult cats continue to enjoy a good sprint around the house.
In most circumstances, zoomies are a normal behaviour.
Look at your cat’s overall body language and what happens before and after the episode. A playful cat may appear alert and energetic but otherwise relaxed and quickly return to their normal routine once the burst of activity is over.
Rather than trying to stop normal zoomies altogether, focus on making your home a safe environment for your cat to run and play.
Providing opportunities for climbing, scratching, exploring and interactive play can also help support both physical activity and mental stimulation.
Although zoomies are usually harmless, a sudden or significant change in your cat’s behaviour shouldn’t automatically be dismissed as normal.
This can be particularly important for older cats.
Vet Voice advises owners to seek veterinary attention if an older cat suddenly becomes unusually active late at night, particularly when the change occurs alongside signs such as weight loss or unusual behaviour. Hyperactivity can, for example, be associated with conditions such as feline hyperthyroidism.
Consider speaking with your veterinarian if your cat’s activity suddenly changes or if their energetic episodes are accompanied by signs such as unusual vocalisation, apparent pain, fear or distress, weight loss, changes in appetite, difficulty using the litter tray or other noticeable behavioural changes.
Recording an unusual episode on your phone can also give your vet useful information about what you’re seeing at home.
For most cats, those sudden hallway sprints are simply another fascinating part of being feline.
Whether they’re burning off energy, tapping into their hunting instincts, responding to excitement or taking advantage of their natural dawn-and-dusk activity cycle, zoomies can provide an energetic outlet for normal cat behaviour.
So, the next time your cat suddenly bolts past you at full speed before returning five minutes later as though absolutely nothing happened, there may be more behind the madness than you think.