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Why does the scale go up during a stressful week?
Answered by Nikkiey Stott and her guests · Updated
The short answer
A stressful week usually pushes the scale up because of water, not fat. On Ep. 287 of The WarriorBabe Show, Nikkiey explains that stress correlates with water weight, and water shows up on the scale. The number can't tell fat from water, sodium, muscle or your period, so a jump isn't real fat gain.
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Nikkiey on why a stress-week jump is water weight, not fat gain
Plays from 6:59 · Ep. 287: How to Stop Obsessing Over the Scale and Measure Progress
Why two or three chaotic weeks won't derail months of progress
Plays from 3:07 · Ep. 287: How to Stop Obsessing Over the Scale and Measure Progress
Giving yourself grace when a busy season changes the scale number
Plays from 2:09 · Ep. 287: How to Stop Obsessing Over the Scale and Measure Progress
The full answer
Nikkiey calls the scale "just you versus gravity." It records one number and knows nothing about what's behind it. It doesn't know your muscle mass, how much water you drank that day, how much stress you're under, how much sodium you had the night before, or whether you're on your period. So when a hectic stretch, like the kids going back to school, lines up with a higher reading, she says it's probably stress-related water weight, not you gaining fat.
She's honest that she's been there. She has stepped on the scale in chaotic seasons, asked why it was up, and let that number decide her mood and whether she was allowed to feel good in her body that day. Her point is that the scale also can't measure your consistency or the commitment you've built over the past few months. A stressful week where workouts and nutrition aren't 100% will look different on the scale, and that's not the whole picture.
What she suggests instead:
- Give yourself grace for the season you're in rather than treating a rough week as failure.
- Zoom out. Two or three weeks won't undo progress you've built over one, two, six or eight months.
- Think of this as a long game, a year or more, where chaotic weeks are small seasons along the way.
- Remember what the goal weight really stands for: feeling confident, in control and proud of what you see. One stress-week number doesn't decide any of that.
The scale going up when life gets hard isn't proof that you're doing it wrong. It's water, gravity and a normal season, and the plan still works if you keep going.
From Nikkiey Stott and WarriorBabe's coaching. For education, not medical advice: talk to your doctor about your own health.
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29 minHow to Stop Obsessing Over the Scale and Measure Progress
Episode 287 · Aug 22, 2025