Pyrenean Mastiffs are gentle giants, yet their weight can shorten their lifetime from 12 to eight years. This breed is prone to obesity, which causes heart failure and organ stress. Larger dogs are prone to bloat.
Welsh Springer Spaniels are kind, affectionate, and easy to teach, making them great family dogs. Potential owners should consider this breed's health issues, even though they live 12-15 years. Some illnesses are ear infections, thyroid difficulties, and eye trouble.
The muscular fawn-coated Dogue de Bordeaux is known for its loyalty, affection, and protection. They are great family pets, but the American Kennel Club claims they live five to eight years. Unfortunately, this breed is prone to bloat, heart disease, epilepsy, hip, and elbow problems.
Irish Wolfhounds, a larger dog breed, love their families and will do anything to get outside. The American Kennel Club says this breed lives six to eight years. Unfortunately, this breed is predisposed to liver shunt, heart disease, pneumonia, and cancer.
While suspicious of strangers, Neapolitan Mastiffs are devoted and affectionate with family. Unfortunately, the American Kennel Club estimates that this mastiff breed will survive seven to nine years. Neapolitan Mastiffs, like many larger breeds, can die from bloat.
Despite being one of the most fun-loving and silly large canine breeds, the Bernese mountain dog has a high and fast mortality rate. This breed has many medical concerns and lives only six to eight years. Cancers are a leading cause of their short lifetime.
Big, sweet Bullmastiffs are loyal, fearless, and sympathetic. Sadly, the American Kennel Club expects them to survive seven to nine years. Why not love them more! They have cardiac troubles, cancer, and bloat, a life-threatening abdominal swelling.