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Dog years, properly

Size-adjusted โ€” not the old times-seven myth.

01Table · 6 points›
Year 1: ~15 human years (all sizes)
Year 2: +9 (โ‰ˆ24 total, all sizes)
Toy/small: +4 per year
Medium: +5 per year
Large: +5.5 per year
Giant: +6-7 per year
02Example · 1 point›
An 8-year-old giant breed โ‰ˆ 24 + 6ร—6.5 = ~63 human years (a senior); an 8-year-old Chihuahua โ‰ˆ 24 + 6ร—4 = ~48 (middle-aged).
03Gear · 8 points›
Note: Knowing their real life stage changes what you buy.
Name: Digital pet scale
Why: Weight trend matters more as they age.
Name: Orthopedic bed
Why: Joint support before they need it, not after.
Name: Non slip floor runners
Why: Traction is the cheapest mobility intervention there is.
Free first: Adjusting their exercise to what they can do today, rather than what they could last year, costs nothing.
04Sources โ€” check this yourself · 1 point›
ยท Wang et al., Cell Systems (2020) โ€” the epigenetic clock study
ยท American Kennel Club (akc.org) โ€” breed standards, event search and club directories
ยท Merck Veterinary Manual (merckvetmanual.com) โ€” the standard clinical reference, free online
Rosette Dog is educational and is not veterinary advice. In an emergency, contact your veterinarian or the nearest emergency animal hospital.

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