section_path: Health/Lifespan
section_name: Lifespan
paragraph_text: Lifespan
  
  The typical lifespan of dogs varies widely among breeds, but the median longevity (the age at which half the dogs in a population have died and half are still alive) is approximately 12.7 years. Obesity correlates negatively with longevity with one study finding obese dogs have a life expectancy approximately a year and a half less than dogs with a healthy weight.