Carl Juneau by Carl @ Dr. Muscle

Newsletters

#28 Sep 16, 2026

2–4 week plan to regain muscle after a break

Mighty lifter, It's September. Kids are back in school, schedules are tight again, and a lot of lifters are returning to…

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#27 Aug 3, 2026

New: Your AI fitness coach, now in your inbox

Mighty lifter, You're getting this email because you're a subscriber to Dr. Muscle and I have exciting news: You can now…

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#26 Feb 18, 2026

New: Free early access + one question from you

Dear lifter, I'm working on something new. I can't share all the details yet, but here's the short version: we're…

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#25 Feb 3, 2026

New Dr. Muscle X update is here (beta)

Hey there! We've got a new update to Dr. Muscle X and we're rolling it out a little early to you in case you who want…

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#24 Dec 31, 2025

Building muscle: it's never enough

Quick story: A little over six months ago, we hired a senior tech lead to help improve the app and manage the team.…

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#23 Nov 10, 2025

New feature: all-time record!

Mighty lifter, You're getting this email because you're a subscriber to Dr. Muscle and we have exciting news: We’ve just…

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#22 Aug 4, 2025

Have you tried the new Dr. Muscle yet?

Mighty lifter, You're getting this email because you're a subscriber to Dr. Muscle—thanks for being part of our journey.…

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#21 Jul 29, 2025

Be the first to try the new Dr. Muscle

Mighty lifter, You're getting this email because you're a beta tester for Dr. Muscle—thanks for being part of our…

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