From the Blog
Science-backed articles on dog aging, health, and care. Written by veterinarians, researchers, and people who have cleaned up way too much dog vomit.
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Rapamycin for Dogs: What the TRIAD Study Actually Found | DogAgeTool Blog
The TRIAD study tested rapamycin on 580 dogs. Cardiac improvements were real, but lifespan data is still years away. Here's what vets actually think.
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Your Dog's Gut Microbiome Is Aging Faster Than You Think | DogAgeTool Blog
Your dog's gut contains 100 trillion microorganisms. As they age, inflammation rises and diversity drops. Here's what the science says.
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I Put My Overweight Lab on a Diet and Learned Obesity Ages Dogs at the Cellular Level | DogAgeTool Blog
Cooper was 8kg overweight. I thought he was big-boned. Then I learned obesity shortens telomeres and accelerates aging. Here's what I did.
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Senior Dog Vaccines: My Vet and I Disagreed (Again) | DogAgeTool Blog
Should senior dogs get the same vaccines as puppies? Titer testing, duration of immunity, and what the research actually says.
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My Beagle's Breath Smelled Like Fruit and It Was Almost Too Late | DogAgeTool Blog
Biscuit's breath smelled like nail polish remover and apricot jam. It was diabetic ketoacidosis. Here's what I missed and what saved her.
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I Thought My Dog Had Food Allergies. Turns Out It Was Seasonal Allergies All Along. | DogAgeTool Blog
I spent $400 on an elimination diet. Eight weeks later, Luna's paws were worse. The real culprit was pollen.
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How to Read Your Dog's Blood Work (Without Panicking) | DogAgeTool Blog
ALT, BUN, CREA, ALP — what do they actually mean? A veterinarian breaks down canine blood work in plain English.
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I Took a Pet CPR Class and Realized I Had No Idea What I Was Doing | DogAgeTool Blog
I thought I knew first aid. Then I took a pet CPR class and discovered everything I was doing wrong. Here's what actually works.
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Wildfire Smoke Is Killing Senior Dogs in the Pacific Northwest | DogAgeTool Blog
Portland's 2026 wildfire season sent AQI to 187. For senior dogs like Cooper, ground-level PM2.5 exposure accelerates aging. Here's what I did.
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I Tried Telehealth for My Dog and Here's What Actually Happened | DogAgeTool Blog
I used pet telehealth three times. Two visits were helpful. One could have been dangerous. Here's when telehealth works — and when it fails.
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Fish Oil, Glucosamine, or CBD: What Actually Works for Dog Joints? | DogAgeTool Blog
The $1.6B pet supplement market promises pain relief. But what does the evidence actually say? A veterinarian breaks down what works and what does not...
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My Dog Started Losing Hair and I Blamed the Shampoo for Three Months | DogAgeTool Blog
Luna's coat was thinning. I bought three expensive shampoos. The real problem was her thyroid. Here's what hypothyroidism looks like in dogs.
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Hypothyroidism in Dogs: The Disease That Looks Like Laziness | DogAgeTool Blog
Your dog is not lazy — they might be hypothyroid. A veterinarian explains why this underdiagnosed condition mimics normal aging.
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I Feed Two Dogs Two Different Diets and It Is a Nightmare | DogAgeTool Blog
Cooper eats senior food. Luna eats adult food. They both want the other's bowl. Here's the feeding system that finally works.
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Bad Teeth Can Give Your Dog Heart Disease: The Science | DogAgeTool Blog
80% of dogs over 3 have dental disease. The bacteria enter the bloodstream and attack heart valves. A veterinarian explains the link.
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I Got My Dog's DNA Tested and the Results Changed Everything | DogAgeTool Blog
Biscuit's DNA test revealed a cancer risk mutation I never expected. Here's what dog DNA tests actually tell you — and what they don't.
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Senior Dog Feeding Age Calculator | DogAgeTool Blog
Title: My Dog Turned 10 and I Realized I Was Feeding Him All Wrong Slug: senior-dog-feeding-age-calculator Date: 2026-08-01 Domain: dogagetool.org My ...
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I Asked Three Oncologists When to Start Cancer Screening for My Dog
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My Dog Sleeps 18 Hours a Day Now and I Am Low-Key Jealous
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My Dog's Muscles Are Disappearing and Nobody Talks About It
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The Day My Dog Refused a Walk and I Panicked for No Reason
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French Bulldogs: Why They Age Faster Than You Think
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I Interviewed 5 Vets About Dog Age. They All Said the Same Thing.
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My Dog Became Anxious at 10 and I Thought She Was Just Grumpy
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DNA Methylation in Dogs: The Study That Changed Everything
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My Dog Went Deaf Gradually and I Did Not Notice for Six Months
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My Vet Said the Word 'Dementia' and I Froze
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How Accurate Are Dog Age Calculators, Really?
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My Dog Licked Her Paws Raw and It Took Me Four Vets to Figure Out Why
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My Dog's Eyes Changed and I Thought It Was Just Old Age
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I Stopped Using the 'Times 7' Rule and Everything Changed
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I Put My Dog on a Diet and She Hated Me for Two Weeks
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Why Large Dogs Age Faster (And What You Can Do)
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I Brushed My Dog's Teeth for 30 Days Straight: Here Is What Happened
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I Have Two Dogs and One Is Getting Old Way Faster Than the Other
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Vet Said Senior Food I Disagreed | DogAgeTool Blog
My Vet Said My 8-Year-Old Dog Needed Senior Food. I Disagreed. Jake Morrison The conversation happened at 10:47 AM on a Thursday. I know because I was...
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My Dog Stopped Jumping on the Couch and I Blamed Myself for Three Weeks
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The Supplements My Vet Actually Recommends for Senior Dogs
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My Dog Started Drinking Less Water and I Almost Missed a Kidney Problem
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I Tried an Elimination Diet for My Dog's Allergies and Lost My Mind
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My Vet Told Me It Was Time and I Argued With Her for an Hour
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Senior Dog Care: A Practical Guide for Real People
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Dog Brain Games Senior | DogAgeTool Blog
Title: I Taught My Old Dog New Tricks (And It Saved Her Mind) Slug: dog-brain-games-senior Date: 2025-10-20 Category: Care Guide Author: Mark Brennan ...
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I Took My 12-Year-Old Dog on a Road Trip and Learned Some Hard Lessons
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My Beagle Ate a Chocolate Bar: A Timeline of Panic
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I Tracked My Dog's Walks for 90 Days: The Data Surprised Me
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I Missed My Puppy's Socialization Window and Now I Am Paying for It
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The Day I Realized My Dog Was Old
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I Left My Senior Dog in a Hot Car for 4 Minutes and I Will Never Do It Again
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The Shelter Told Me My Rescue Dog Was 2. My Vet Said 8. I Cried in the Parking Lot.
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Swimming for Senior Dogs: Why It Is the Perfect Exercise