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In a perfect world, our dogs would stick around for decades. Instead, most of us face the same heartbreak: no matter how loved and well cared for they are, their lives are far shorter than ours.

And while there is no universal rule for how long a canine will live, some breeds are known for outlasting others-though genetics is only part of the story. Lifestyle, diet, medical care and even body size can all shape a dog’s odds of reaching old age.

That size factor was highlighted in a study which found that larger canines are more likely to die younger.Researchers suggested that decades of selective breeding for bigger bodies may have unintentionally made large breeds more vulnerable to cancer. Simply put, dogs’ bodies haven’t had enough time to “catch up” evolutionarily to the rapid, human-driven push toward larger size-creating what the authors call an “evolutionary lag” in natural cancer defenses.

With that in mind, Newsweek spoke to Dr. Bethany hsia, a mobile veterinarian, about which breeds tend to live the longest and what owners can do to tilt the odds in their pup’s favor.

The Dog Breeds Most Likely To Live longest

Table of Contents

• The Dog Breeds Most Likely To Live longest
  • Chihuahua
• Dachshund
  • Toy Poodle
  • Shih Tzu
  • Maltese
• What Owners Can Do To Help Their Dogs Live longer
• Dog Breeds With the Longest Lifespans
  • Beagle

“Several breeds consistently appear at the top of life span lists due to their genetic predispositions and generally robust health,” Hsia said. Smaller dogs,she added,often have an advantage.

Here are the breeds she highlighted:

Chihuahua

“These tiny companions are renowned for their long lives,” Hsia said. Many reach 14 to 16 years,and some live even longer. Their small size is strongly linked with longevity in canines.

Dachshund

“Dachshunds are known for their spunky personalities and surprisingly long lifespans,” Hsia said. “They often live 12 to 16 years, with some reaching their late teens.” However, she cautioned that their long backs make them prone to intervertebral disc disease, which can impact their quality of life.

Toy Poodle

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“toy Poodles are intelligent, hypoallergenic, and enjoy a good lifespan,” hsia noted. They typically live 14 to 18 years, and their smaller size contributes to their longevity.

Shih Tzu

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“These little ‘lion dogs’ are affectionate and can live 10 to 16 years,” Hsia said. “They are prone to certain health issues, like brachycephalic syndrome due to their short noses, but generally enjoy a good lifespan with proper care.”

Maltese

“Maltese are gentle, playful, and known for their long, flowing white coats,” Hsia explained. “They often live 12 to 15 years, and some even reach 18 or older.”

What Owners Can Do To Help Their Dogs Live longer

While genetics play a role, Hsia emphasized that owners have significant control over their dog’s lifespan. Here are her recommendations:

* Diet: “Feed a high-quality,balanced diet appropriate for your dog’s age and activity level.Avoid overfeeding, as obesity can shorten lifespan.”
* exercise: “Regular exercise is crucial for maintaining a healthy weight and cardiovascular system.”
* Preventative Care: “Stay up-to-date on vaccinations, parasite prevention, and regular veterinary checkups. Early detection of health problems can substantially improve outcomes.”
* Dental Health: “Dental disease is common in dogs and can led to systemic health issues. regular teeth brushing and professional cleanings are essential.”
* Mental Stimulation: “Keep your dog mentally stimulated with toys, puzzles, and training. A bored dog is more likely to develop behavioral problems and may experience a decline in overall health.”
* Love and Attention: “A loving and supportive environment is essential for a dog’s well-being. Strong bonds with their owners can reduce stress and improve quality of life.”

Hsia

Dog Breeds With the Longest Lifespans

Affectionate and people-focused, Shih Tzus frequently reach 10 to 16 years. their life span can depend heavily on respiratory health and consistent grooming.

Beagle

Image of a beagle dog resting peacefully in a cozy bed indoors.

Beagles are known for their cheerful dispositions and robust health, frequently enough living between 12 and 15 years. Maintaining a healthy weight and providing ample exercise are key to a long life for this breed. American Kennel Club – Beagle

2025/12/14 04:00:40