Why Do Dogs Live Such Short Lives?

Compared to humans, dogs age at an accelerated rate. This is especially true for larger breeds, who age faster than smaller breeds. For example, a Great Dane may reach physical maturity at around 2 years old, but will start to show signs of aging by age 6 or 7. This means that the average lifespan of a dog is actually longer than the average lifespan of a human.

2. Increased risk of diseases

Like humans, dogs can suffer from many of the same diseases, including cancer, heart disease, stroke, and kidney failure.

3. Breed-specific health issues

In addition to being susceptible to the same diseases as humans, dogs can also suffer from breed-specific health issues. For example, certain breeds of dogs are more likely to have hip dysplasia, which is a painful and debilitating condition.

4. Environmental factors

Environmental factors, such as pollution, poor diet, and lack of exercise, can also contribute to a shorter lifespan.

Ultimately, a dog's lifespan is determined by a combination of genetics, breed, lifestyle, and overall health. With proper care and attention, dogs can live long and healthy lives.