Hard constraints

The rules that stay fixed no matter how attractive breaking them looks. Sort every limit you listed and mark the ones that are genuinely non-negotiable, then leave them alone while you test which of the remaining limits can bend.

The rules that stay fixed no matter how attractive breaking them looks. Sort every limit you listed and mark the ones that are genuinely non-negotiable, then leave them alone while you test which of the remaining limits can bend.

Example

On the fat-loss push you mark three as fixed: seven hours of sleep, no dropping below 1,600 calories, and Saturday mornings belong to your kids. Everything else, including the fasted-cardio rule, becomes fair game to relax.