A four-year-old dog is equivalent to a human age, which is approximately between 28 and 35 years old. The specific age still depends on the size of the dog. Mature dogs tend to be less active than adult dogs and require special considerations based on the dog's physical issues.

Every year a dog grows by one year is equivalent to six years by a human. A 4-year-old dog is in the adult stage. You should pay attention to your eating habits. For example, it is best to feed dog food as the main food. Dog food has high nutritional value. It is best not to feed people food.

The average lifespan of large dogs is shorter than that of small dogs. We usually think that when a dog reaches adulthood at one year old, it is equivalent to a human being of eighteen years old. Around three years old is its prime period, and around nine years old it enters old age, which is equivalent to a human being between 60 and 65 years old. about.