Phase 1 · Understand Your Body

Phase goal

Start with the life you want your body to support. Distinguish strength, muscle size, fat change, and measurement. The six-layer model organizes priorities without producing a body score.

Bring the Chapter 1 goal card, Chapter 2 measurement conditions, and evidence boundaries from Chapters 3–5 into Chapter 6. You can build goals around everyday capability and sustainable actions without measuring physique.

Phase output

Create a goal card with an explanation of its evidence. Practice can live in ordinary notes; existing tools only record the actual information each supports.

Completion check

1. Write one everyday capability goal, its reason, and an achievable action for this week.
2. Separate actual observations, estimates, assumptions, and unknowns. Weight and circumference are not direct tissue measurements.
3. Name a voluntary physique priority or explicitly choose not to record it, alongside recovery and everyday conditions to protect.
4. Explain when to keep observing and when to seek professional help. No change in body numbers is required.

Keep learning completion separate from actual capability. Reading, self-checks, and planning cannot replace execution, on-site technique assessment, or evidence of health outcomes.

Chapters

1. What Does “Fit” Mean? · Full lesson available

   What do I want my body to be able to do?

2. Muscle, Fat and Body Composition · Full lesson available

   Beyond body weight, which changes are worth observing?

3. Strength vs Muscle Size · Full lesson available

   How are strength and muscle size different?

4. Why Muscle Grows · Full lesson available

   How should I understand training and physical adaptation?

5. Why Fat Changes · Full lesson available

   How should I understand changes in body fat?

6. The Lean Physique Model · Full lesson available

   How do body fat, muscle, proportion, posture, fitness, and recovery fit into a goal?

Chapters 1–6 have full lesson bodies. Follow the sequence or return with a real-world question. Self-reported learning records do not verify personal health outcomes.