Weight hasn't moved in weeks but analyze: what specifically is causing plateau? Map all variables: intake accuracy, activity level, sleep, stress, measurements beyond scale. Calculate: if fat is decreasing but water/muscle is increasing, is there progress I'm missing? Show me the plateau checklist: troubleshoot these factors systematically. Give me the plateau-breaking protocol: adjust these variables in this order. Include: whether plateau is real or measurement issue, what's most likely causing stall, and what to change first.