CNN

Science rethinks “dog years” and human years

Jul 3, 2020, 2:30 PM | Updated: 2:43 pm
Ban of gas chambers to euthanize pets...
Proposed Legislation to ban the use of gas chambers in Utah to euthanize pets
Originally Published: 03 JUL 20 13:41 ET

(CNN) — How do you compare a dog’s age to that of a person? A popular method says you should multiply the dog’s age by 7 to compute how old Fido is in “human years.”

But new research published Thursday in the Cell Systems journal debunks that method. And that’s because the scientists behind a new study say dogs and humans don’t age at the same rate.

Researchers at the University of California San Diego School of Medicine have developed a new formula that takes into account that variance. Tracking molecular changes in the DNA of Labrador retrievers, and in particular “the changing patterns of methyl groups” in their genome, according to a release, the study shows how dogs age at a much faster rate than humans early in their lives, then slow down after reaching maturity.

“This makes sense when you think about it — after all, a nine-month-old dog can have puppies, so we already knew that the 1:7 ratio wasn’t an accurate measure of age,” lead author Trey Ideker is quoted as saying.

Based on the study, a one-year-old dog compares to a 30-year-old human, a four-year-old dog to a 52-year-old human. The rate of aging decreases after dogs turn 7.

The new formula “is the first that is transferable across species,” and scientists plan to test their findings on other dog breeds to study the impact of longevity on their findings, according to a release.

Researchers also believe that observing changes in the methylation patterns before and after the use of anti-aging products could help veterinarians make more informed decisions in terms of diagnostics and treatment.

A graphic in the study makes the age comparisons intuitive and provides some helpful context for dog owners, including the scientists themselves.

“I have a six-year-old dog — she still runs with me, but I’m now realizing that she’s not as ‘young’ as I thought she was,” Ideker is quoted as saying.

The-CNN-Wire
™ & © 2020 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.

We want to hear from you.

Have a story idea or tip? Send it to the KSL NewsRadio team here.

Today’s Top Stories

CNN

Tyre Nichols Protests...
Nouran Salahieh, Jamiel Lynch, Chuck Johnston, Shawn Nottingham, Andy Rose and Phil Gast, CNN

More protests today after release of video depicting the deadly police beating of Tyre Nichols

Protesters across the US heldmarches & rallies on Saturday, one day after the release of video showing the police beating of Tyre Nichols in Memphis.
19 hours ago
Temperatures dropping weather worsens...
Allison Chinchar, CNN Meteorologist

‘Dangerous’ arctic air returns this weekend after a month-long hiatus

What has been a mild start to 2023 will come to a halt this weekend as winter makes a roaring comeback across the Northern Plains and Upper Midwest.
19 hours ago
Video footage of a traffic stop that led to the deadly beating of Tyre Nichols shows "acts that def...
Travis Caldwell, Jay Croft, Eric Bradner and Alisha Ebrahimji, CNN

Memphis releases video showing police stop that led to Tyre Nichols’ death

Editor’s note: This article contains graphic descriptions of violence. (CNN) — The city of Memphis has released police body camera and surveillance video showing the January 7 traffic stop and violent police confrontation that led to the death of 29-year-old Tyre Nichols. During the initial encounter between Nichols and Memphis police, an officer can be seen […]
2 days ago
File**People walk past the entrance to a Bed Bath & Beyond retail store along Sixth Avenue in N...
Paul R. La Monica and Nathaniel Meyersohn, CNN

Bed Bath & Beyond says it can no longer pay its debts

The end could be near for struggling retailer Bed Bath & Beyond, as it warned in a regulatory filing Thursday that it received a notice of default from its lender, JPMorgan Chase.
2 days ago
Five former Memphis police officers who were fired for their actions during the arrest of Tyre Nich...
Travis Caldwell and Jay Croft, CNN

‘You’re going to see acts that defy humanity,’ police chief says of Tyre Nichols video

Police also have not been able to find anything that's substantiated the probable cause for reckless driving by Nichols before his fatal encounter with police, she said.
2 days ago
Havasu Falls spills into the water pools below in Supai, Arizona, in October of 2016. Photo credit:...
Forrest Brown, CNN

Grand Canyon’s Havasu Falls to reopen to visitors after 3-year closure

 (CNN) — Havasu Falls, one of the most intriguing features of the Grand Canyon system, will be reopening to visitors after a three-year closure caused by the Covid-19 pandemic. But it’s with a catch. The reopening is scheduled for February 1; however, access will be limited initially to a certain, small group. People whose previous […]
2 days ago

Sponsored Articles

Banner with Cervical Cancer Awareness Realistic Ribbon...
Intermountain Health

Five Common Causes of Cervical Cancer – and What You Can Do to Lower Your Risk

January is National Cervical Cancer Awareness month and cancer experts at Intermountain Health are working to educate women about cervical cancer, the tests that can warn women about potential cancer, and the importance of vaccination.
Kid holding a cisco fish at winterfest...
Bear Lake Convention and Visitors Bureau

Get Ready for Fun at the 2023 Bear Lake Monster Winterfest

The Bear Lake Monster Winterfest is an annual weekend event jam-packed full of fun activities the whole family can enjoy. This year the event will be held from January 27-29 at the Utah Bear Lake State Park Marina and Sunrise Resort and Event Center in Garden City, Utah. 
happy friends with sparklers at christmas dinner...
Macey's

15 Easy Christmas Dinner Ideas

We’ve scoured the web for you and narrowed down a few of our favorite Christmas dinner ideas to make your planning easy. Choose from the dishes we’ve highlighted to plan your meal or start brainstorming your own meal plan a couple of weeks before to make sure you have time to shop and prepare.
Spicy Homemade Loaded Taters Tots...
Macey's

5 Game Day Snacks for the Whole Family (with recipes!)

Try these game day snacks to make watching football at home with your family feel like a special occasion. 
Happy joyful smiling casual satisfied woman learning and communicates in sign language online using...
Sorenson

The Best Tools for Deaf and Hard-of-Hearing Workplace Success

Here are some of the best resources to make your workplace work better for Deaf and hard-of-hearing employees.
Team supporters celebrating at a tailgate party...
Macey's

8 Delicious Tailgate Foods That Require Zero Prep Work

In a hurry? These 8 tailgate foods take zero prep work, so you can fuel up and get back to what matters most: getting hyped for your favorite
Science rethinks “dog years” and human years