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The Misconception Everyone Believes: This is How Dog Years Are Actually Calculated, Your Pet Is Younger Than You Think

Dog years are calculated completely differently than you think. Find out the exact formula and check how old your pet really is.

The Misconception Everyone Believes: This is How Dog Years Are Actually Calculated, Your Pet Is Younger Than You Think

TL;DR

  • The 'multiply by seven' rule for dog years is a myth created in the mid-20th century.
  • Dogs mature rapidly in their first few years, then their aging process slows.
  • A scientific formula based on epigenetic changes in DNA was developed in 2019: human years = 16 × ln(dog age) + 31.
  • A one-year-old dog is equivalent to about 31 human years.
  • A four-year-old dog is equivalent to about 53 human years.
  • A ten-year-old dog is equivalent to about 68 human years.
  • Factors like breed, size, and genetics influence a dog's aging process; smaller dogs tend to live longer and age slower after five years.
  • Accurate age calculation impacts proper care, including diet, vaccinations, and vet check-ups, with semi-annual blood tests recommended for dogs aged seven to ten.
  • Playfulness does not always equate to youth; internal biological processes are key indicators of a dog's age.