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Nine modules, about 20,000 words. Every module has a 🟢 Simple version (3–5 minute read, plain language) and a 🔵 Full version (10–18 minute read, with biology, research, and citations).

Recommended approach: read all nine Simple versions first (about 30 minutes total). That gives you the complete picture. Then come back to the Full versions of the modules that matter most for your specific dog.

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The first 30 minutes — what to read tonight

Even if your big dog is healthy today, the actions that matter most work on a months-to-years timeline. The sooner you start, the more time compounds.

Module 0 — How to Read This Playbook (2 min). Sets up the two-pass approach and the 🟢/🔵 system.
Module 1 (Simple) — Why Big Dogs Age Faster. IGF-1 explained with a "growth switch" analogy anyone can follow.
Module 3 (Simple) — Is My Dog a Candidate? Three-question decision tree that tells you which Loyal drug (if any) applies to your dog.
Module 7 (Simple) — Ten Things You Can Do Today. The highest-leverage module. Start with #1 (body condition score). The rest follows.

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While you read

📨 Sign up for Loyal's waitlist

Covered in detail in Module 5. If your dog is a LOY-002 candidate, get on the notification list today — don't wait until the drug ships.

Loyal waitlist →

🧪 Check TRIAD study eligibility

If your dog is 7+ years and 44–120 lbs, apply for the Dog Aging Project's rapamycin study. Free. Covered in Module 4.

TRIAD application →

📅 Book a vet visit

Module 6 prepares you with exactly what to ask. Don't wait — make the appointment this week. A senior wellness panel is your baseline.

Read Module 6 first →

📝 Weigh and photograph your dog

Module 7's first action. Today's weight and a photo from above become the "before" reference you'll measure progress against. Takes 5 minutes.

Jump to Module 7 →