1 dog year not equivalent to 7 human years, scientists say

1 dog year not equivalent to 7 human years, scientists say

US scientists found that dogs do not simply age at seven times the rate of humans.

The findings suggest a one-year-old dog would have a “human age” of about 30, while by the age of four they’d be about 54 in “human years”, and by 14 they would be on a par with a human in their mid-70s.

Writing in the journal Cell Systems, researchers at the University of California San Diego’s school of medicine describe how they focused on epigenetic changes to DNA – modifications that don’t change the DNA sequence but can switch genes on or off.

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