While no dog is completely immune to health issues, some breeds are known for their overall hardiness, genetic stability, and longevity. If you're looking for a furry companion with fewer trips to the vet and a longer, healthier life, choosing a breed with fewer inherited problems is a smart first step. In this guide, we highlight the healthiest dog breeds, explain why they tend to live longer, and share tips to keep your pup in top shape—no matter the breed.