What Is The Average Life Expectancy Of An Indoor Cat

Have you ever wondered how long your indoor cat is likely to live? While the lifespan of a cat can vary depending on various factors, such as breed, genetics, and overall health, the average life expectancy of an indoor cat typically ranges between 12 to 20 years. Providing a safe and stimulating environment, along with regular veterinary care and a balanced diet, can greatly contribute to ensuring that your feline companion lives a long and healthy life. In this article, we will explore the factors that influence the lifespan of indoor cats and provide tips on how to promote their well-being.

What Is The Average Life Expectancy Of An Indoor Cat

Table of Contents

Factors That Affect Life Expectancy of Indoor Cats

Genetics

Genetics play a significant role in determining the life expectancy of indoor cats. Just like humans, cats inherit certain genetic traits that can influence their overall health and longevity. Some genetic factors may make certain breeds more prone to specific health conditions or diseases, while others may be associated with a higher resistance to certain illnesses.

Breed

Different cat breeds come with their own distinct set of genetic traits and health predispositions. Some breeds are known to be more robust and have a longer life expectancy than others. Factors such as body size, bone structure, and coat type can also contribute to a breed’s potential lifespan. It’s essential for cat owners to be aware of common breed-related health issues and seek appropriate veterinary care to mitigate these risks.

Diet and Nutrition

Proper nutrition is crucial for maintaining the overall health and longevity of indoor cats. A well-balanced and nutritious diet plays a significant role in supporting the immune system, promoting healthy organ function, and preventing chronic diseases. Cats require a diet that is rich in animal-based proteins, healthy fats, and essential nutrients. Providing them with high-quality cat food and avoiding excessive treats or table scraps can help ensure they receive the necessary nutrients for a long and healthy life.

Exercise and Activity

Regular exercise and physical activity are essential for indoor cats to maintain a healthy weight, muscle tone, and overall well-being. Cats are natural hunters, and engaging in playtime activities that mimic predatory behavior allows them to fulfill their instinctual needs. Interactive toys, scratching posts, and climbing structures can provide opportunity for exercise, mental stimulation, and enrichment. These activities not only benefit their physical health but also contribute to their mental and emotional well-being.

Weight Management

Maintaining a healthy weight is crucial for indoor cats to live a long and healthy life. Obesity in cats is linked to a multitude of health issues, including diabetes, heart disease, arthritis, and shorter lifespan. Monitoring feeding portions, offering appropriate food quantities, and providing regular exercise can help prevent overweight or obese conditions in cats. Consultation with a veterinarian can provide guidance on ideal weight ranges and dietary adjustments to promote weight management.

Healthcare

Proactive and consistent healthcare is vital to ensure the well-being and longevity of indoor cats. Regular veterinary check-ups and vaccinations can help prevent or detect any potential health issues early on. Routine examinations allow veterinarians to monitor the cat’s overall health, administer necessary vaccines, and recommend preventive care measures. Following a vaccination and healthcare schedule as recommended by the veterinarian is crucial in boosting a cat’s immunity and preventing diseases.

Environment

Creating a safe and suitable indoor environment is essential for the well-being and longevity of indoor cats. Providing a stress-free and enriching environment allows cats to thrive and reduces their exposure to potential hazards. Offering appropriate hiding spots, vertical spaces for climbing, scratching posts, and interactive toys can help satisfy their natural instincts and provide mental stimulation. Additionally, ensuring a clean and comfortable living area helps minimize the risk of infections or illnesses.

Stress Levels

Minimizing stress is crucial for the overall health and longevity of indoor cats. Chronic stress can have a detrimental impact on a cat’s immune system, making them more susceptible to various health conditions. Providing a stable and predictable routine, maintaining a calm and harmonious household, and offering plenty of opportunities for play, mental stimulation, and social interaction can help reduce stress levels. It’s important to be mindful of any changes or stressors in the cat’s environment and take appropriate measures to address them.

Lifestyle Changes

Life changes and transitions can have a significant impact on the life expectancy of indoor cats. Moving to a new home, introducing new pets, or experiencing a change in the household dynamics can cause stress and anxiety in cats. Proper introductions, gradual adjustments, and providing familiar and comforting spaces can help ease the transition and minimize any negative effects on the cat’s health and well-being.

Interventions

Sometimes, despite our best efforts, cats may develop health issues or require medical interventions to prolong their life expectancy. If a cat is diagnosed with a specific health condition or disease, working closely with a veterinarian to develop an appropriate treatment plan is essential. This may include medication, specialized diets, or other therapeutic interventions tailored to address the specific needs of the cat. By closely monitoring the cat’s health and following the veterinarian’s recommendations, we can provide the best possible care and support to increase their life expectancy.

Potential Health Issues That Influence Life Expectancy

Obesity and Diabetes

Obesity and diabetes are significant health issues that can significantly impact the life expectancy of indoor cats. Excessive weight gain can lead to insulin resistance and the development of diabetes, as well as an increased risk of numerous other health problems. Feeding a balanced diet and providing regular exercise are critical in preventing obesity-related health issues in cats.

Heart Disease

Heart disease, including conditions such as hypertrophic cardiomyopathy, can affect cats of all ages and breeds. While genetics can contribute to heart disease, factors such as high blood pressure, obesity, and hyperthyroidism can also increase the risk. Regular veterinary check-ups can help detect early signs of heart disease and allow for appropriate management and treatment.

Kidney Disease

Chronic kidney disease is a common health problem in aging cats and can significantly impact their life expectancy. While genetics can play a role, factors such as a high-salt diet, inadequate hydration, and certain infections or toxins can contribute to the development of kidney disease. Regular blood tests and monitoring of kidney function can help identify early signs of kidney disease and guide appropriate treatment and management strategies.

Cancer

Cancer can affect cats of any age or breed and is a significant contributor to reduced life expectancy. Certain genetic factors, exposure to certain carcinogens, and age can increase the risk of cancer in cats. Regular veterinary check-ups, early detection through screenings, and appropriate treatment options such as surgery, chemotherapy, or radiation can help manage and potentially extend the life of a cat diagnosed with cancer.

Respiratory Diseases

Respiratory diseases, such as asthma or chronic obstructive pulmonary disease (COPD), can significantly impact a cat’s life expectancy. Environmental factors, such as exposure to allergens or cigarette smoke, and genetic predispositions can contribute to the development of these conditions. Veterinary care, medication, and environmental modifications can help manage respiratory diseases and improve a cat’s quality of life.

Hypertension

Hypertension, or high blood pressure, can affect cats and is often associated with other underlying health conditions such as kidney disease or hyperthyroidism. Regular blood pressure monitoring and appropriate management can help minimize the impact of hypertension on a cat’s overall health and life expectancy.

Hyperthyroidism

Hyperthyroidism is a common endocrine disorder in older cats and can significantly affect their life expectancy if left untreated. While genetics may play a role, exposure to certain environmental factors and dietary imbalances can contribute to the development of hyperthyroidism. Early diagnosis and appropriate management through medication, radioiodine therapy, or surgery can help mitigate the effects of hyperthyroidism and extend the cat’s lifespan.

Arthritis

Arthritis is a degenerative joint disease commonly seen in aging cats. While genetics may predispose certain breeds to arthritis, factors such as obesity, previous injuries, and joint abnormalities can contribute to its development. Providing a comfortable and accessible environment, regular exercise, and appropriate pain management can help improve an arthritic cat’s quality of life and potentially prolong their lifespan.

Dental Problems

Untreated dental issues can have a significant impact on a cat’s overall health and life expectancy. Periodontal disease, tooth decay, and oral infections can lead to pain, difficulty eating, and potential systemic infections. Regular dental care, including professional cleanings and at-home dental hygiene, is crucial in preventing dental problems and maintaining a cat’s oral health.

Urinary Issues

Urinary issues such as urinary tract infections, urinary blockages, or the formation of bladder stones can affect cats, particularly male cats. Genetics, diet, and hydration levels can contribute to the development of urinary issues. Early detection, appropriate veterinary care, dietary modifications, and increased hydration can help manage urinary issues and prevent complications that could impact a cat’s life expectancy.

What Is The Average Life Expectancy Of An Indoor Cat

Ways to Increase the Life Expectancy

Regular Veterinary Check-ups

Regular veterinary check-ups are crucial in detecting and addressing any potential health issues early on. Routine physical examinations, vaccinations, parasite prevention, and blood tests can help identify any underlying health concerns and allow for appropriate intervention before they become serious. Following a recommended veterinary care schedule can significantly contribute to the overall health and longevity of indoor cats.

Balanced Diet

Feeding a balanced and nutritious diet is essential for increasing the life expectancy of indoor cats. A diet that meets their unique nutritional needs, including high-quality animal-based proteins, is essential for maintaining optimal health. Consultation with a veterinarian can provide guidance on selecting an appropriate cat food and ensuring it meets the cat’s specific dietary requirements.

Weight Control

Maintaining a healthy weight is crucial for increasing the life expectancy of indoor cats. Obesity can lead to a variety of health problems and reduce a cat’s overall quality of life. Monitoring food intake, providing appropriate portion sizes, and engaging in regular exercise and playtime can help ensure that cats maintain a healthy weight and avoid obesity-related health issues.

Exercise and Mental Stimulation

Regular exercise and mental stimulation are essential for the well-being and longevity of indoor cats. Engaging in playtime activities that mimic hunting and prey behavior can help cats expend energy, maintain muscle tone, and prevent obesity. Providing interactive toys, scratching posts, climbing structures, and puzzle feeders can offer mental stimulation and enrichment.

Hydration

Adequate hydration is crucial for maintaining the overall health of indoor cats. Cats are prone to urinary tract issues, and ensuring they have access to fresh water and moisture-rich foods can help promote proper kidney function and prevent urinary problems. Additionally, incorporating wet food into their diet can increase their overall hydration levels.

Oral Hygiene

Proper oral hygiene is vital for increasing the lifespan of indoor cats. Regular dental care, including brushing their teeth, providing dental treats or toys, and professional dental cleanings, can help prevent dental diseases and minimize the risk of infections or other systemic health problems. Consultation with a veterinarian can provide guidance on the best oral hygiene practices for cats.

Stress Reduction

Reducing stress levels is crucial for improving the overall health and life expectancy of indoor cats. Minimizing changes in their environment, providing a stable routine, and offering plenty of opportunities for play, mental stimulation, and social interaction can help reduce stress and promote well-being. Recognizing and addressing any stressors in their environment is essential in creating a peaceful and harmonious atmosphere.

Preventive Measures

Preventing potential health issues through vaccination, parasite prevention, and appropriate healthcare measures is vital for increasing the life expectancy of indoor cats. Following a recommended vaccination schedule, administering preventive medications for fleas, ticks, and heartworms, and maintaining good hygiene practices can help reduce the risk of infectious diseases and other preventable health problems.

Safe Environment

Creating a safe indoor environment is essential for increasing the life expectancy of indoor cats. Minimizing potential hazards such as toxic plants, chemicals, open windows, or dangling cords can help prevent accidents or injuries. Providing adequate supervision and ensuring their living area is clean and free from any potential dangers can help promote a safe and secure environment.

Spaying or Neutering

Spaying or neutering indoor cats is essential not only for population control but also for their overall health and well-being. Spaying female cats eliminates the risk of uterine infections and significantly reduces the risk of certain reproductive cancers. Neutering male cats eliminates the risk of testicular cancer and reduces the incidence of certain behavioral problems. Consultation with a veterinarian can provide guidance on the appropriate timing for spaying or neutering.

Special Considerations for Older Cats

Changes in Nutritional Needs

As cats age, their nutritional requirements may change. Older cats may require modified diets that support healthy aging and address specific age-related health concerns. Consultation with a veterinarian can help determine the best diet options and nutritional supplements for senior cats to support their overall health and longevity.

Joint and Muscle Health

Maintaining joint and muscle health is essential for the overall well-being of older cats. Arthritis and age-related muscle loss can significantly impact their mobility and quality of life. Providing comfortable resting areas, incorporating joint supplements, and engaging in low-impact exercise can help support their joint and muscle health.

Dental Care

Oral health becomes increasingly important for older cats, as dental problems can negatively impact their overall health and quality of life. Regular dental cleanings, appropriate dental treats or toys, and vigilance in monitoring for any signs of dental disease are crucial in maintaining oral health in older cats.

Medical Monitoring

Regular medical monitoring is vital to ensure the early detection and management of any age-related health issues in older cats. Blood tests, urine analysis, and other diagnostic screenings can help identify potential health concerns and guide appropriate treatment or management strategies.

Environmental Modifications

Modifying the indoor environment to accommodate the changing needs of older cats can improve their overall comfort and accessibility. Providing low-entry litter boxes, ramps or steps to elevated spaces, and comfortable bedding can help older cats navigate their surroundings more easily and reduce any potential physical strain.

Comfort and Quality of Life

Ensuring the comfort and quality of life for older cats is crucial. Providing a quiet and comfortable space, soft bedding, and appropriate temperature control can help senior cats rest and sleep peacefully. Regular grooming and attention to their individual needs can also contribute to their overall comfort and well-being.

Mobility and Accessibility

Maintaining mobility and accessibility is important for older cats to move around comfortably and independently. Providing litter boxes on every floor of the household, ensuring easy access to food and water, and minimizing the need to navigate stairs or high surfaces can help older cats maintain their mobility and reduce the risk of injuries.

Cognitive Stimulation

Cognitive stimulation is essential for senior cats to keep their minds sharp and engaged. Offering puzzle toys, interactive feeders, and regular playtime can help stimulate their cognitive abilities and prevent cognitive decline associated with aging.

Emotional Support

Older cats may require increased emotional support as they age. Providing a calm and comforting environment, spending quality time with them, and offering affection and reassurance can help reduce anxiety and increase their overall emotional well-being.

Pain Management

Managing pain in older cats is crucial for maintaining their quality of life. Regular assessments of their comfort levels, appropriate pain medication or supplements, and consultation with a veterinarian can help develop a pain management plan tailored to the individual needs of each cat.

Comparison between Indoor and Outdoor Cats

Outdoor Hazards

Outdoor cats face various hazards and risks that can significantly impact their life expectancy. Traffic accidents, encounters with aggressive animals or wildlife, exposure to toxins, and the risk of getting lost are just a few examples of the dangers outdoor cats may encounter.

Vehicle Accidents

Being exposed to traffic significantly increases the risk of outdoor cats being involved in vehicle accidents, which often result in severe injuries or fatalities. The unpredictable nature of roads, the speed of vehicles, and the reduced visibility for drivers make outdoor cats vulnerable to this type of danger.

Predators and Wildlife

Outdoor cats are more likely to encounter predatory animals or wildlife, which pose a significant risk to their life expectancy. Attacks from larger predators, such as coyotes or raccoons, and confrontations with other animals can lead to severe injuries, infections, or even death.

Infectious Diseases

Outdoor cats have a higher risk of contracting infectious diseases due to increased exposure to other animals, contaminated environments, and unvaccinated cats. Diseases such as feline leukemia, feline immunodeficiency virus (FIV), or upper respiratory infections can significantly impact the health and lifespan of outdoor cats.

Environmental Toxins

Outdoor cats are exposed to a wide range of environmental toxins, including pesticides, herbicides, antifreeze, and other chemicals. Accidental ingestion or contact with these toxins can lead to poisoning, organ damage, or even fatalities.

Exposure to Extreme Weather

Outdoor cats are exposed to extreme weather conditions, which can have a detrimental impact on their health and life expectancy. Extreme heat or cold, prolonged exposure to rain or snow, and lack of proper shelter can lead to heatstroke, hypothermia, or other weather-related health conditions.

Risk of Injury

Outdoor cats are more likely to experience accidents or injuries due to their exposure to various outdoor elements. Falls from heights, entrapment in tight spaces, fights with other animals, or traumatic injuries are all potential risks for outdoor cats.

Shorter Life Expectancy

Numerous studies and observations indicate that the life expectancy of outdoor cats is significantly shorter compared to indoor cats. Outdoor cats face a higher likelihood of accidents, injuries, infectious diseases, and other life-threatening situations.

Reduced Access to Care

Outdoor cats have limited access to regular veterinary care, which can impact their overall health and lifespan. Preventive vaccinations, routine check-ups, and prompt medical intervention for any health issues may be scarce for outdoor cats, resulting in a lack of necessary healthcare.

Outdoor Lifestyle Benefits

While outdoor cats face numerous risks, it is essential to consider the benefits that an outdoor lifestyle can provide for cats. The ability to explore their natural environment, engage in hunting behaviors, and experience the stimulation of outdoor sights, sounds, and scents can contribute to their overall well-being and mental enrichment.

Statistics and Research on Indoor Cat Life Expectancy

Studies on Different Breeds

Numerous studies have explored the life expectancy of different cat breeds. These studies often take into account various genetic and environmental factors that may influence the lifespan of specific breeds. By understanding breed-related health predispositions, veterinarians and cat owners can provide appropriate care and successfully manage potential health issues.

Data Analysis of Long-Lived Cats

Data analysis of long-lived cats has provided valuable insights into the factors that contribute to a longer life expectancy. These analyses analyze various factors, such as genetics, lifestyle, diet, and healthcare, to identify patterns and trends associated with increased lifespan in cats.

Factors Affecting Life Expectancy

Through research and data analysis, several factors have been identified as influencing the life expectancy of indoor cats. Genetic predispositions, diet and nutrition, exercise levels, weight management, healthcare access, and environmental factors have all been found to play a significant role in determining a cat’s potential lifespan.

Impact of Lifestyle and Care

The lifestyle and care provided to indoor cats significantly impact their life expectancy. Cats that receive appropriate nutrition, preventive healthcare, regular veterinary check-ups, mental and physical stimulation, and a safe and stress-free environment tend to have longer and healthier lives.

Comparisons with Outdoor Cats

Comparisons between indoor and outdoor cats consistently show that indoor cats tend to have longer life expectancies. The increased exposure to hazards, accidents, diseases, and limited access to healthcare for outdoor cats contribute to their reduced lifespans.

Trends and Observations

Trends and observations in indoor cat life expectancy research highlight the importance of providing appropriate care and a safe environment for cats. Optimal nutrition, preventive healthcare, mental and physical stimulation, and stress reduction measures can all contribute to increasing the life expectancy of indoor cats.

Regional and Environmental Variations

Regional and environmental variations can significantly impact the life expectancy of indoor cats. Factors such as climate, access to veterinary care, prevalence of certain diseases, and overall environmental conditions can influence the general health and longevity of cats in different areas.

Future Research Opportunities

Continued research in the field of indoor cat life expectancy can provide valuable insights into the best practices for maintaining the health and well-being of indoor cats. Exploring additional genetic factors, identifying new ways to prevent diseases, and understanding the impact of specific environmental conditions can contribute to future advancements in feline healthcare.

Educating Cat Owners

The findings and research on indoor cat life expectancy can be used to educate cat owners about the importance of proper care and preventive measures. By disseminating accurate and evidence-based information, cat owners can make informed decisions about their cat’s health and well-being, leading to longer and healthier lives for their feline companions.

Addressing Myths and Misconceptions

Cats Always Live Longer Than Dogs

Contrary to popular belief, cats do not always live longer than dogs. While some cats may have longer lifespans compared to certain dog breeds, the life expectancy of individual cats and dogs can vary greatly depending on numerous factors such as genetics, care, and overall health.

Indoor Cats Have Unlimited Lifespan

Indoor cats may have a longer life expectancy compared to outdoor cats, but they do not have an unlimited lifespan. Lifespan is influenced by various factors, including genetics, diet, exercise, preventive healthcare, and environmental conditions. While indoor cats may be exposed to fewer hazards, they still require proper care to maintain optimal health and maximize their life expectancy.

Purebred Cats Live Longer than Mixed Breeds

It is a common misconception that purebred cats automatically live longer than mixed breed cats. While certain purebred cats may have specific genetic traits associated with longer lifespans, this is not true for all purebred cats. The overall health and well-being of a cat are more influenced by factors such as proper care, nutrition, exercise, and healthcare than purely genetic factors.

Declawing Increases Life Expectancy

Contrary to popular belief, declawing has no direct impact on increasing a cat’s life expectancy. Declawing is a controversial surgical procedure that involves the amputation of the cat’s claws and can lead to behavioral, physical, and psychological issues. Providing appropriate scratching posts, nail trimming, and positive reinforcement training are preferable alternatives for managing a cat’s scratching behavior.

Older Cats Are Not Worth the Effort

Every cat, regardless of age, is worthy of love, care, and attention. Older cats may require additional support and medical care due to age-related health issues, but they can still lead fulfilling and happy lives with proper care and attention. The effort invested in caring for older cats is often rewarded with a deep bond and companionship.

It Is Cruel to Keep Cats Indoors

Keeping cats indoors is not cruel but rather a responsible choice that prioritizes their safety and well-being. Indoor cats are protected from various hazards such as traffic accidents, diseases, attacks from predators, exposure to toxins, and other risks present in the outdoor environment. With proper care, attention, and environmental enrichment, indoor cats can lead long, healthy, and fulfilling lives.

Cats Can Safely Self-Medicate

Cats should never be allowed to self-medicate or have access to medications meant for humans or other pets. Cats have unique physiological differences that make them more susceptible to the toxic effects of certain medications. Additionally, many human medications can be toxic or deadly to cats. Administration of any medication should always be done under the guidance and supervision of a veterinarian.

One Size Fits All Care Approach

Cats have individual needs and requirements that vary based on their age, breed, overall health, and lifestyle. A one-size-fits-all approach to cat care is not appropriate or effective. Tailoring care to meet the specific needs of each cat, including proper nutrition, exercise, preventive healthcare, and environmental enrichment, is crucial for their overall health and longevity.

Age is Just a Number for Cats

While age itself should not be the sole determinant of a cat’s worth or value, age does have a significant impact on a cat’s overall health and well-being. Older cats may require additional medical care, dietary adjustments, and environmental modifications to support their aging bodies.

Regular Vet Visits Are Unnecessary

Regular veterinary visits are crucial for maintaining the health and well-being of cats, regardless of their age or living environment. Routine check-ups, vaccinations, and preventive care allow veterinarians to monitor a cat’s overall health, detect any potential issues early on, and provide appropriate treatment or management strategies. Skipping regular vet visits can result in undetected health problems and reduced life expectancy for cats.

Tips for a Long and Healthy Life for Indoor Cats

Proper Nutrition and Feeding Schedule

Providing a balanced and nutritious diet that meets the specific nutritional needs of indoor cats is essential for their overall health and longevity. Consultation with a veterinarian can help determine the appropriate diet and feeding schedule based on the cat’s age, breed, and any specific health concerns.

Regular Physical Activity

Engaging in regular physical activity is crucial for indoor cats to maintain a healthy weight, muscle tone, and overall well-being. Interactive playtime, using toys that mimic hunting behavior, and providing opportunities for exercise and mental stimulation are important for their physical and mental health.

Stress Reduction Techniques

Reducing stress levels is vital for the overall health and life expectancy of indoor cats. Ensuring a calm and stress-free environment, providing a predictable routine, and offering plenty of opportunities for play, mental stimulation, and social interaction can help minimize stress and promote their well-being.

Preventive Healthcare Measures

Following a preventive healthcare regimen, including regular veterinary check-ups, vaccinations, parasite prevention, and dental care, is essential for increasing the life expectancy of indoor cats. Early detection and intervention can significantly impact the outcome of any potential health issues.

Creating a Safe and Enriched Environment

Creating a safe and enriched indoor environment for cats is crucial for their overall health and well-being. Offering appropriate hiding spots, vertical spaces for climbing, scratching posts, interactive toys, and comfortable resting areas can provide mental stimulation, physical exercise, and a sense of security.

Social Interaction and Emotional Support

Providing social interaction and emotional support is essential for the overall happiness and well-being of indoor cats. Spending quality time with them, offering affection and attention, and ensuring they have opportunities for positive social interactions can contribute to their mental and emotional health.

Maintaining Ideal Body Weight

Maintaining an ideal body weight is crucial for indoor cats to prevent obesity and related health issues. Monitoring their food intake, providing appropriate portion sizes, and engaging in regular exercise and playtime can help ensure they maintain a healthy weight.

Oral and Dental Care

Proper oral and dental care is vital for the overall health and longevity of indoor cats. Regular dental cleanings, brushing their teeth with cat-friendly toothpaste, and providing appropriate dental treats or toys can help prevent dental disease and reduce the risk of infections or other systemic health problems.

Monitoring for Any Signs of Illness

Being vigilant and monitoring for any signs of illness or changes in behavior is crucial for the early detection and intervention of any potential health issues. Unexplained weight loss, changes in appetite, increased thirst, changes in litter box habits, or any other abnormal behaviors should be promptly addressed with a veterinarian.

Collaboration with Veterinarian

Collaborating closely with a veterinarian, following their guidance and recommendations, and maintaining open lines of communication are essential for the overall health and well-being of indoor cats. Regular veterinary check-ups, prompt attention to any health concerns, and proactive healthcare measures can significantly contribute to their life expectancy.