The results permitted them to derive a formula for adjusting dogs’ ages to “human years”, by multiplying the purely natural logarithm on the Puppy’s age by sixteen and incorporating 31 ( So…all in all, the 7-yr fantasy isn't real and it hasn't been true for a relatively long time now, https://andreuakty.mybuzzblog.com/13515413/the-2-minute-rule-for-convert-dog-years-to-human-years