Cravings that had disappeared are back. What changed recently: sleep, stress, food quality, or eating pattern?
The Short Answer
Cravings don’t return randomly. Something in your environment or behavior changed. The most likely culprits: deteriorating sleep, increased stress, reintroduction of high-glycemic foods, or an expanded eating window. Cravings are signals: they’re telling you something shifted. Your job is to identify what changed and decide whether to correct it.
Something to Sit With
Cravings were gone. Now they’re back. Something changed.
What changed?
And is it something you want to change back?
Learn More
Cravings Have Causes.
When you’re in a good rhythm (sleeping well, eating whole foods in a defined window, managing stress), cravings often fade. The metabolic and hormonal environment that drives intense food-seeking behavior stabilizes.
When cravings return, that environment has changed. The craving isn’t the problem; it’s the symptom. Treating the symptom (white-knuckling through the craving) without addressing the cause can leave you in a constant battle.
The Four Usual Suspects.
1. Sleep deterioration
In the controlled trials where this was measured, sleep restriction raises ghrelin and lowers leptin: a profile pointing to “eat more, especially carbs.” Under free eating the same signals read the other way, and people overeat anyway.[1] In twelve healthy young men, Spiegel and colleagues showed that two nights of restricted sleep, with food and activity held constant, raised hunger and, specifically, appetite for calorie-dense high-carbohydrate foods, by 33 to 45%, while appetite for fruit, vegetables, and high-protein foods was not significantly affected.[2],[1]
Questions to ask:
- How many hours are you sleeping?
- Has your sleep quality changed (more waking, less deep sleep)?
- Did a schedule change, travel, or stress disrupt your sleep pattern?
If sleep is the culprit, start with the sleep rather than trying to out-resist the craving.
2. Increased stress
Chronic stress is proposed to raise cravings for “comfort foods” (calorie-dense, often sweet or fatty options) through cortisol, a mechanism worked out in rats; in one lab study of 59 women, high cortisol reactors ate more on stress days and chose sweeter foods.[3]
Questions to ask:
- What’s your stress level compared to when cravings were absent?
- Are you dealing with something new (work pressure, relationship issues, health concerns)?
- Has your stress management practice slipped (exercise, meditation, whatever works for you)?
Stress-driven cravings won’t resolve until stress is addressed, or at least acknowledged.
3. Food quality degradation
The suspect here is high-sugar or highly processed food coming back into your eating. These foods show reward-region activation resembling substance dependence: a blood-oxygen signal rather than dopamine, which the study itself lists among its limits.[4]
Questions to ask:
- Have you eaten foods recently that you’d been avoiding?
- Did a “just this once” exception become a pattern?
- Has your overall food quality gradually drifted?
If you’ve reintroduced foods that trigger cravings, you may need to re-eliminate them to break the cycle.
4. Eating window expansion
When your eating window expands (from 8 hours to 10, from 10 to 12), you lose fasting time, which on the carbohydrate-insulin model is time with insulin low, and a review of insulin experiments reports raised insulin increasing hunger.[5] The creep is often gradual and unnoticed until cravings return.
Questions to ask:
- When did you eat your first food yesterday? And the day before?
- When did you finish eating?
- Has your window drifted from where it was when things were working?
If your window expanded, reinstating a clear boundary may resolve the issue.
The Investigation Process.
Don’t guess, examine:
Compare then and now. Think back to when cravings were manageable. What was different? Be specific: sleep hours, stress level, food choices, eating times.
Identify the change. Something shifted. What was it? When did it happen?
Assess the connection. Does the timing of the change correspond to the return of cravings? Cause and effect aren’t always obvious, but often they align.
The Response Options.
Once you identify the likely cause:
Correct the change. If sleep deteriorated, prioritize sleep. If stress increased, address the stress or your stress response. If food quality slipped, return to what was working. If your window expanded, reinstate your boundary.
Accept the trade-off. Sometimes the change is unavoidable (a sick family member disrupting sleep, a work deadline creating stress). You might accept that cravings will be harder during this period without adding judgment.
Experiment. If you’re not sure which factor is responsible, try correcting one variable and observing. Give it a few days to a week.
Further reading:
- Spiegel K et al., “Brief communication: Sleep curtailment in healthy young men is associated with decreased leptin levels, elevated ghrelin levels, and increased hunger and appetite”[6] — Annals of Internal Medicine, 2004
- Adam TC & Epel ES, “Stress, eating and the reward system”[7] — Physiology & Behavior, 2007
- Dallman MF et al., “Chronic stress and obesity: a new view of ‘comfort food’”[8] — Proceedings of the National Academy of Sciences, 2003
- Markwald RR et al., “Impact of insufficient sleep on total daily energy expenditure, food intake, and weight gain”[9] — Proceedings of the National Academy of Sciences, 2013
Written by AI, directed and approved by me. How this is made →