The J2J Training Blog

Locker Room Conversations

Strength programming, technique breakdowns, and training guides. No fluff. No broscience. Just what works.

Sore After Every Workout? Here's What It Actually Means

Sore after every workout? Soreness tracks novelty, not muscle growth. Here's what it actually means and the one metric that does track progress.

Jun 2, 2026Read →

Recovery7 min read

Why You're Not Building Muscle Even Though You Train Hard

Training hard but not building muscle? The fix is recovery — how calories, sleep, volume, and progressive overload work together to turn effort into size.

May 23, 2026

Recovery6 min read

How Many Rest Days Do You Need to Build Muscle?

Science says muscle needs 36 to 48 hours to recover. Here is how many rest days you actually need to build muscle.

May 23, 2026

Built-in calculators

Training Tools

5 free calculators — 1RM Calculator, Plate Calculator, Macro Calculator, Muscular Potential, Squat & Deadlift Visualizer. The numbers that matter, so you train with precision instead of guesswork.

Explore Tools

The next step

You’ve done the reading

Every article here explains the why. None of them can tell you what to do on Monday - which lifts, at what loads, on which days, and how all of it changes week to week. That’s not another article. That’s a program, and it only works when it’s built around one body: yours.

Build my program

7 questions · One-time · From $19 · No subscription

The Founding 100 - 96 of 100 spots remaining