Dog HealthspanEst. 2026
JournalProtocolsAbout
The Journal

Every essay we've published, in order of publication.

New essays go live monthly. Each one takes a single longevity lever and examines what the published evidence actually supports.

Foundations
May 2026

Healthspan, Not Just Lifespan: The New Science of Aging Well in Dogs

Adding years to your dog's life is the easy part. Adding life to those years is what the next decade of canine medicine is really about.

9 min read
Amber dropper bottle in warm light
Nutrition
April 2026

The Lean Dog Protocol: Why Body Condition Is the Single Best Longevity Lever

A landmark 14-year Labrador study found that lean dogs lived nearly two years longer than their littermates. The mechanism — and the practical playbook — is now clear.

11 min read
Fresh longevity ingredients on stone
Movement
April 2026

Movement Is Medicine: The Cellular Case for the Daily Walk

What an hour of sniffing, trotting, and exploring actually does to a dog's mitochondria, brain, and joints — and why intensity matters less than you think.

8 min read
A dog mid-stride in a meadow at golden hour
Cognition
March 2026

The Gray Muzzle Mind: Catching Cognitive Decline Before It's Visible

Canine cognitive dysfunction affects 28 percent of dogs aged 11 to 12, and 68 percent by age 16. The early signs are subtle — and the window for intervention is wider than most owners realize.

10 min read
An owner's hand resting on a senior dog's head
Recovery
March 2026

The Sleep Prescription: Why Rest Is the Most Underrated Longevity Input

Adult dogs need 12 to 14 hours of sleep. Seniors need 16 to 18. The quality of that sleep is doing more biological work than almost anything else in their day.

7 min read
A senior dog sleeping on a linen blanket
Dog Healthspan

An independent journal on canine longevity — translating peer-reviewed science into the small daily decisions that extend a healthy life.

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Disclosure

We sometimes recommend products from Four-Legged Longevity. Editorial coverage is independent of any commercial relationship.

© 2026 Dog Healthspan. All rights reserved.
Not veterinary advice. Always consult your vet.