Three weeks, then done. Johnson tried tirzepatide at 0.5mg weekly (1/5th the standard starting dose) and halted when his data turned negative: resting heart rate up 3bpm, HRV down 7 points, sleep quality down 10%. He already had optimal metabolic markers, so the risk outweighed any benefit. This is some of the best-documented peptide discontinuation data available, with exact biomarker numbers attached.