Sleep
7–9 hours. The hormone reset that makes everything else work.
GLP-1s blunt cortisol but only if you let them. The first habit isn't food — it's a fixed sleep window. I learned this the hard way in month two, when six-hour nights stalled my weight loss for three weeks straight.
- Same bedtime, weekdays and weekends
- Cool, dark, screen-free 30 min before
- Magnesium glycinate if you wake at 3am