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The Longevity Advantage: Do Indoor Cats Live Longer?

Do indoor cats live longer than outdoor cats? Indoor cats tend to live longer than their outdoor counterparts, with an average lifespan of 10-20 years compared to cat life expectancy of just 2-5 years for outdoor cats that only live outside.

There are several reasons why indoor cats live longer. First and foremost, indoor cats are protected from the many dangers that outdoor cats face, such as being hit by cars, being attacked by other animals, or being exposed to diseases and parasites.

Indoor cats are less likely to get into fights or ingest toxic substances, both of which can be fatal.

By keeping our cats indoors, we can significantly reduce their risk of injury or illness and help them live longer, healthier and happier lives together.

indoor cats sitting on a blanket

Indoor Vs Outdoor Cats

Keeping our feline friends indoors or letting them roam outside? – is a question cat owners often ask themselves.

Indoor cats are safe from dangers such as cars, predators, and diseases however outdoor cats enjoy the freedom to explore, hunt, and play and climb trees.

But, the question remains, do indoor cats live longer than outdoor cats?

the Indoor Cat Environment

Indoor cats lead a more sedentary lifestyle than outdoor cats.

Indoor life for cats is less active and inside cats spend most of their time sleeping, grooming, and playing with toys.

Indoor cats are also less exposed to risks such as accidents, fights, and infections.
Indoor cats are less likely to contract diseases such as Feline Immunodeficiency Virus (FIV) and Feline Leukemia Virus (FeLV), which are spread through contact with other cats.

Indoor cats are safe from parasites like fleas and ticks which can transmit diseases. They’re also not at risk of ingesting toxins outside.

Indoor cats also benefit from a controlled environment that is free from extreme temperatures, parasites, and toxins.

Indoor cats are less likely to suffer from stress related disorders such as anxiety, depression, and aggression.

cat sleeping in a pink bed indoors

The Outdoor Cat Environment

Outdoor only cats face more dangers than indoor cats.

Outdoor cats are exposed to risks such as traffic accidents, animal attacks, and environmental hazards.

Outdoor cats are also more likely to contract diseases such as FIV, FeLV, and Rabies, which are spread through contact with other cats, wild animals, and infected fleas and ticks.

Outdoor cats also face the risk of getting lost or stolen. They may wander away from home and end up in unfamiliar territory, where they may not be able to find their way back home.

Outdoor cats are also more likely to be taken in by strangers or end up in shelters, where they may not receive proper care and attention.

How Long Do Indoor Cats Live?

Indoor cats tend to live a longer life than their outdoor counterparts. I think this is a debatable statement. In the end it comes down to how well the cat is cared for, so this broad generalization is not true for all cats.

However there is no disputing the fact that cats that live indoors are generally safer and have fewer opportunities to encounter dangers such as cars, predators, and diseases.

Indoor cats can still face health problems if they don’t receive proper care. Regular visits to the vet, a healthy diet, and plenty of exercise can help ensure your indoor cat lives a long and healthy life.

Provide your indoor cat with a comfortable and stimulating environment, including cat trees to keep the cat active and to provide climbing opportunities and the ability to observe goings on from a height.

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How Long Do Outdoor Cats Live?

Outdoor cats face more significant risks than indoor cats, which can significantly impact their lifespan.

According to PetMD, outdoor unsupervised cats typically live to around seven years old. This is because outdoor cats are more likely to encounter dangers such as cars, predators, and diseases.

Of course, many outdoor cats live far beyond seven years. We need to consider that an outdoors only feral cat is likely to have a shorter life span that a sometimes outdoor cat that comes from an environment where he is well cared for.

If you have an outdoor cat, it’s essential to take steps to keep your cat safe.

This includes ensuring they have access to shelter and plenty of food and water, as well as regular vet check-ups.

Providing your outdoor cat with a collar and ID tag is absolutely essential can also help ensure they can be identified if they become lost.

How often do I see on the Facebook page for my local community, a cat that has gone missing. Please, please please get your outdoor cat an ID tag with the cat’s name and your phone number.

Cat ID Tag

Factors Influencing Cat Longevity

When it comes to the life expectancy of cats, there are several factors that can influence their longevity. Some we have no control over and other we do.

1.Genetic Factors Influencing Cat Longevity

Genetics plays a significant role in determining a cat’s life expectancy.

Some key points to consider:

Inbreeding

Purebred cats can be the result of selective breeding, which can lead to inbreeding. This practice can increase the likelihood of inheriting genetic disorders, that may reduce the cat’s lifespan. Pet owners or would be buyers, this is also true for dogs.

Breed specific health issues

Certain purebred cats are predisposed to specific health problems due to their genetic makeup. For example, Persian cats are prone to polycystic kidney disease, while Maine Coons are at risk for hypertrophic cardiomyopathy.

This is by no means definitive and is a reminder about breed specific problems if a pure breed cat is what you are looking for.

Hybrid vigour

Crossbred cats, or those with a more diverse genetic background, often exhibit hybrid vigour, which can contribute to improved health and longevity compared to purebred cats. So, maybe your moggy will have a lovely long life.

Responsible breeding practices

Breeders who prioritize health and genetic diversity in their breeding programs can help improve the longevity of purebred cats by reducing the incidence of inherited disorders.

Basically choose a breeder carefully if you are looking for a pure breed cat.

Lifespan variation among breeds

Some purebred cat breeds, such as the Siamese and Savannah, tend to have longer lifespans than others, like the Manx and Bengal. This variation is largely attributed to genetic factors

Please note that while genetic factors significantly influence purebred cat longevity, it is essential to note that environmental factors, such as diet, healthcare, and living conditions, also play a crucial role in a cat’s overall health and lifespan.

It is important to research the breed you have or are interested in and discuss any potential health issues that may affect the lifespan of the cat with your veterinarian.

2. Diet and Weight Influencing Cat Longevity

Indoor cats may gain weight more easily than outdoor cats, if the diet is not regulated.

Obesity

Overweight cats are at a higher risk of developing various health issues such as diabetes, arthritis, heart disease, and urinary tract problems.

These conditions can significantly reduce a cat’s quality of life and lifespan.

Balanced diet

Feeding your cat a balanced, species appropriate diet is crucial for maintaining a healthy weight and promoting longevity.

Cats are obligate carnivores, meaning they require a diet high in animal protein and low in carbohydrates.

Portion control

Overfeeding is a common cause of feline obesity.

Follow the feeding guidelines provided by the food manufacturer and adjust portions based on your cat’s age, weight, and activity level.

Wet food vs. dry food

Wet food generally contains more moisture and can help keep cats hydrated, which is essential for urinary tract health. Bear in mind that wet food is good for elderly cats to help ensure that they are getting enough moisture in their diet.

However, both wet and dry food can be part of a balanced diet for a cat.

cat eating wet food

Avoid table scraps

Human foods can disrupt a cat’s balanced diet and lead to weight gain or other health issues. Some human foods, such as onions, garlic, and chocolate, can be toxic to cats.

Giving our cat little treats is something that should be done on the odd occasion not regularly.

Regular exercise

Encourage your cat to stay active through play and exploration.

This helps maintain a healthy weight, keeps their mind stimulated, and promotes overall well being.

Vet check-ups

Regular veterinary check ups can help monitor your cat’s weight and detect any health issues early on, allowing for prompt treatment and better long term outcomes.

overweight indoor cat
This cat is overweight!

3. Healthcare and Veterinary Medicine Influencing Cat Longevity

Regular veterinary check ups and preventative care can help catch health issues early on and prevent more serious problems from developing.

Vaccinations, parasite prevention, and dental care are all important aspects of maintaining a cat’s health. Your vet will keep you up to date with what is needed and when. Our last cat was lucky to have the same vet for his entire life so any health concerns were well documented.

Senior cats may require more frequent check ups and specialized care.

4. Living Conditions Influencing Cat Longevity

Living conditions can also have a significant impact on a cat’s chances of living a long and healthy life.

The things already discussed such as indoor cats not being exposed to the many dangers present in the outside world, such as cars, infectious diseases, and predators.

Mental stimulation and physical stimulation, such as toys and scratching posts can help indoor cats enjoy a happy life.

Cats should have access to hiding spots, and plenty of space to play and exercise and above all, lots of love and attention in bucketfuls.

More Questions About The Life Expectancy Of Cats

What is the life expectancy of an indoor only cat?

Indoor cats typically live longer than outdoor cats, with an average lifespan of 14 to 20 years.

However, factors such as diet, exercise, and medical treatment can affect a cat’s life life expectancy.

Can indoor cats live 20 years?

Yes, indoor cats can live up to 20 years or more with proper care and attention.

Regular veterinary check ups, a balanced diet, and plenty of exercise can help ensure a long and healthy life for your indoor cat.

Do outdoor cats live longer than indoor cats?

Outdoor cats generally have a shorter lifespan than indoor cats due to the increased risk of injury, disease, and other hazards.

However, some outdoor cats can live long and healthy lives with proper care and attention.

Many cats termed as outdoor cats actually spend about half the time indoors so their needs are met in regard to health and safety.

Are indoor cats or outdoor cats happier?

There is no definitive answer to this question, as each cat’s personality and preferences are unique.

Some cats may prefer the freedom and stimulation of the outdoors, while others may be perfectly content living indoors.

As long as their basic needs are met, both indoor and outdoor cats can be happy and healthy.

What percentage of cats live to 20?

According to some studies, only about 10% of cats live to be 20 years or older. With proper care and attention, many cats can live a long life span, well into their late teens or early twenties.

As cat owners, we have all owned or know of cats that have lived between the ages of 15 and 20 years.


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We are indoor kitties and very cosy too!

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