A new study found the old “one dog year is seven human years” isn’t accurate. Dogs age a ton early on, and by the time they’re one, it’s like 30 human years. But their aging slows down a lot after that. They’re around 52 in human years by age four . . . and around 70 in human years by age 10.<\/p>\n\n\n\n
FULL STORY:<\/strong> You’ve probably heard the old rule-of-thumb that dog years are like human years times seven. So when your dog is one, that’s like being a seven-year-old person . . . at two, it’s like being 14, and so on.<\/p>\n\n\n\n But a new study out of the University of California, San Diego found that system isn’t REALLY accurate. The researchers say, quote, “A nine-month-old dog can have puppies, so we already knew the one-to-seven [age] ratio wasn’t accurate.”<\/p>\n\n\n\n They studied the age of the cells in a dog’s body to figure out what they really are in human years. And here’s what they found . . .<\/p>\n\n\n\n 1. Dogs make a HUGE leap in their first year, and by the time a dog is one year old, they’re basically like a 30-year-old person.<\/p>\n\n\n\n 2. Then their aging slows down. At age two, they’re around 40 in human years. By the time a dog is four, that’s like being 52 in human years.<\/p>\n\n\n\n 3. And their aging really tails off after that. When a dog is 10 years old or older, they’re like a 70-year-old person and they start aging at about one human year for every dog year. <\/p>\n\n\n\n