Dog Years Don't Work Like We Thought

Your dog is older than you think!

July 6, 2020

We've all heard the dog years calculation that says 1 dog year equals 7 dog years. So, if your dog is 5, it's 35 in human years. Well, I'm sorry to break it to you, but appararently that's all wrong. 

A new study out of the UC San Diego found that equation isn't actually accurate.  Their researchers said, "A nine-month-old dog can have puppies, so we already knew the one-to-seven [age] ratio wasn't accurate." 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 figured out:


1.  Dogs make a huge leap in their first year and by the time a dog is one year old, they're like a 30-year-old person.

2.  After that first year, 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.

3.  After that, their aging really slows down. 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. 


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