A slip doesn’t erase your progress, but your reaction to it can

Key takeaways

• Among 203 people who slipped after quitting smoking, fewer than half went back to daily smoking during six weeks of tracking, and a drop in confidence after a slip predicted a quicker next slip.
• Relapse researchers separate a lapse, a single slip, from a relapse, a return to the old pattern, and say the way you explain a slip helps decide which one follows.
• Adults in an NIH study gained less than a pound, on average, between Thanksgiving and New Year’s, not the 5 pounds often claimed, but they didn’t lose it afterward.
• In the eight-year Look AHEAD trial, about half of the people in an intensive lifestyle program still weighed at least 5% less than when they started.
• Small studies suggest that meeting a slip with self-kindness, rather than harsh criticism, goes along with less eating and better self-control afterward.

During a nicotine-patch study, 203 people quit smoking, stayed off cigarettes for at least a day, and then slipped. Each one carried an electronic diary and logged lapses as they happened, 1,001 of them in all¹.

Fewer than half of those people, 45%, went back to smoking every day during the six weeks the researchers followed them¹. For the rest, a slip stayed just a slip.

The researchers also asked how people felt after each lapse. Guilt and self-blame didn’t behave the way theory predicted. A drop in confidence did: the less sure people felt that they could stay quit after a slip, the sooner the next one came¹.

That finding gets at the heart of recovering from a setback. The slip itself is rarely the main problem. Trouble starts when one slip changes how you see yourself, and “I slipped” becomes “I can’t do this.”

Whether your setback is a cigarette, a missed month at the gym or a holiday feast, this is what research says about slips and how to restart.

A lapse is one event, and a relapse is a slide back

Researcher G. Alan Marlatt and his colleagues built a model called relapse prevention, laid out in a 1999 overview in the journal Alcohol Research & Health².

In that model, a lapse is the first slip after you set a goal, such as one drink after deciding not to drink. A relapse is a full return to the old pattern, or giving up the goal altogether².

The overview treats relapse as a process that unfolds over time, starting before the first slip and continuing after it². That’s hopeful, because a process has many points where you can step off.

Many slips start in what the model calls high-risk situations. In an analysis Marlatt published in 1996, bad moods, together with conflict with other people, set off more than half of relapse episodes. Social pressure played a part in more than 20%².

The model also flags “apparently irrelevant decisions,” small choices that seem harmless but edge you toward trouble². The overview’s example: stocking liquor at home on the off chance that visitors drop in. A food version: buying the family-size chips “for the kids.”

A life tilted too far toward “shoulds” over “wants” is another warning sign². When every day is obligations and nothing feels good, the pull toward a reward grows, and so does the urge to excuse it².

Does the approach work? Reviews summarized in the overview found that relapse-prevention training cut how often relapses happened, and how severe they were, among people who drank again. It did not produce higher abstinence rates than other good treatments².

“I blew it, so why bother”: the abstinence-violation effect

Marlatt’s model gives the “why bother” reaction a name: the abstinence-violation effect². It covers the feelings that follow a slip and the explanation you give yourself for it.

The model says the explanation carries the most weight. Blaming a slip on something fixed and sweeping about you, such as “I have no willpower and never will,” makes giving up more likely². Blaming it on a specific situation you didn’t yet know how to handle points toward learning instead².

The model also predicts that guilt after a slip can feed more of the behavior, as a way to escape the bad feeling².

The smoking diary study offered a real-world test, and its authors concluded that it gave Marlatt’s model mixed support¹. Low confidence after a slip predicted a faster next slip, as the model expects. But guilt and self-blame didn’t act as expected, and self-blame even seemed protective for people who had stayed quit longer before slipping¹.

Slips also sped up: each new lapse came about 8% faster than the one before, on average¹.

The study followed people for only six weeks, most were white, and all were in a medication trial¹. The lesson we draw from it is practical: what you conclude about your ability to change after a slip may matter more than how bad you feel about it.

Kindness after a slip: what the experiments show

Diet slips have their own version of “why bother.” Researchers have long described a pattern in people who diet strictly: after eating something off-plan, they sometimes go on to eat more, not less³.

In a 2007 experiment, Claire Adams and Mark Leary of Duke University tested whether self-compassion could interrupt that pattern³. Self-compassion means treating your own mistakes with the kindness you’d show a friend.

College women either ate an unhealthy food or didn’t. Some then got a message encouraging them to go easy on themselves about what they had eaten³. Among the strictest dieters, the message eased distress and cut how much they ate afterward³.

A 2020 study from University College London tried a related test with 60 women who had probable binge eating disorder or bulimia⁴. After a frustrating word task meant to lower their mood, half listened to a 10-minute self-compassion recording and half to one that encouraged self-critical brooding⁴.

Both groups were then left alone with chocolate, mini muffins and cookies. The self-compassion group ate about 162 calories, compared with about 306 in the self-critical group⁴. It tested a bad mood rather than a diet slip, though its authors saw the results as matching the 2007 study⁴.

Real life is messier than a lab. A Drexel University team led by Charlotte Hagerman followed 140 adults in a group weight-loss program as they answered smartphone surveys several times a day⁵. When people reported a lapse, such as eating more than they meant to, the survey asked how kindly they had treated themselves about it⁵.

After lapses met with more self-compassion, people reported better mood and better self-control over eating and exercise in the hours that followed⁵. The study, published in the journal Appetite, shows a link, not proof of cause. Drexel’s summary doesn’t say whether self-kindness changed later lapses or weight loss⁵.

All three studies are small, but together they suggest self-kindness after a slip helps more than self-attack. Self-compassion isn’t excusing the slip; it’s treating it as a human mistake, learning from it and getting back to the plan.

Holiday weight gain is smaller than you’ve heard, but it tends to stay

Each winter, headlines warn that the holidays add 5 pounds or more. In 2000, researchers at the National Institutes of Health (NIH) put that claim to the test⁶⁷.

They weighed 195 adults four times from fall to late winter, and 165 came back to be weighed the next fall⁶⁷. The average gain from Thanksgiving to New Year’s was 0.37 kilogram, about 0.8 pound⁶⁷. Fewer than 1 in 10 gained more than 5 pounds, and people with overweight or obesity were more likely to do so⁶.

People also overestimated their holiday gain by slightly more than 3 pounds⁶. And the small gain didn’t come off over the following year, which the researchers said may help explain slow weight gain across adulthood⁶⁷.

A 2017 review of later studies found that adults typically gained 0.4 to 0.9 kilogram, roughly 1 to 2 pounds, over the holidays⁸. Only two studies followed people afterward. In one large study of smart-scale users in three countries, about half the Christmas gain came off quickly⁸.

Can you prevent it? In a 2018 randomized trial, where people are assigned by chance to one group or another, 272 adults in Birmingham, England, were asked to weigh themselves at least twice a week and reflect on the trend⁹. They also got 10 weight tips and pictures showing how much activity it takes to burn off festive foods⁹.

They ended the holidays about half a kilogram, roughly a pound, lighter than a comparison group⁹. The follow-up lasted only weeks, so no one knows whether the difference held⁹.

Most people regain some weight, and many keep a meaningful loss

Some of the best long-term data on regain come from Look AHEAD, a trial of 5,145 adults with type 2 diabetes and overweight or obesity¹⁰.

Regain was real. The intensive lifestyle group’s average loss shrank from 8.5% of body weight after one year to 4.7% at year eight. A comparison group that got diabetes education was down 2.1% by then¹⁰.

So was lasting success. At eight years, 50.3% of the lifestyle group still weighed at least 5% less than at the start, a loss the researchers call clinically meaningful, and 26.9% weighed at least 10% less¹⁰. Among people who had lost 10% or more by year one, about 39% still had a 10% loss eight years later¹⁰.

People who kept the weight off reported more physical activity and more frequent self-weighing than people who regained it all. Nearly half weighed themselves daily, compared with about 28% of regainers¹⁰. Those are self-reported links, not proof of cause¹⁰.

Drawing on the National Weight Control Registry, researchers Wing and Phelan estimated in 2005 that about 20% of people with overweight succeed at long-term weight loss, meaning they lose at least 10% and keep it off for at least a year¹¹. Registry members had lost an average of 33 kilograms, about 73 pounds, and kept it off for more than five years¹¹.

Their most encouraging finding: once people had kept weight off for two to five years, their odds of lasting success rose sharply¹¹.

Illness, injury and big life events are pauses, not failures

Not every setback is a slip. A flu, a sprained ankle, a new baby, a move or a death in the family can stop a routine cold. The studies above don’t test these interruptions, so treat this section as practical guidance, not proven fact.

Name it accurately. A routine you paused for a good reason didn’t fail. Calling it a failure invites the sweeping self-judgment that Marlatt’s model warns about².

Restart smaller than you stopped. For low energy, the CDC advises starting slowly and building up over time, and for fear of injury, raising intensity gradually¹². If you’re coming back from an illness, surgery or injury, ask your clinician when and how to resume.

Rebuild the cue. A new schedule after a move or a job change can erase the old trigger for a habit. Pick a new, reliable moment to attach the habit to, such as right after your morning coffee.

Seasons of effort and rest fit natural-health values

Many natural-health traditions see life in cycles: growth and rest, feasting and fasting, effort and recovery. A lapse fits that view better than the all-or-nothing language of “falling off the wagon.”

The research points the same way. Lasting success in Look AHEAD and the weight registry didn’t mean never regaining a pound. It went with keeping up habits such as regular activity and self-weighing¹⁰¹¹.

A restart plan for the day after a slip

Use this within 24 hours of a slip. It takes about 10 minutes on paper. It combines the research above, but the plan as a whole hasn’t been tested.

1. Call it a lapse. Write: “This was a slip, not a relapse.” One event doesn’t erase weeks of practice.
2. Answer the slip with one kind sentence. For example: “This is hard, lots of people slip, and I can learn from it.”
3. Explain it by the situation, not your character. Finish this sentence: “I slipped because the situation was ___, and I didn’t have a plan for it.” Skip “because I’m weak”².
4. Find the high-risk moment. Were you tired, stressed, lonely, in conflict, or with people who were drinking or eating²?
5. Spot the small decision that set it up. Did you skip lunch, keep the snack in sight or say yes to the late night²?
6. Write one if-then plan for next time. “If someone offers me a drink at the party, then I’ll ask for sparkling water with lime.” Our article on changing long-held habits covers these plans.
7. Do the next right thing today. Take the walk, cook the planned meal or call your quit coach. Keep it small enough to succeed, since confidence after a slip appears to matter¹.
8. Check the numbers gently. If you track weight, weigh in and note the trend, not the single day⁹¹⁰.
9. Add one “want” to your week. Balance a stretch of obligations with something you enjoy².
10. Decide when to ask for help. In the smoking study, slips tended to come closer together over time¹. If yours are speeding up, or one slip has stretched into a week or more (our rule of thumb, not a research cutoff), bring in support.

What the evidence shows

Idea	What studies found	Evidence level
A single slip means you’ve failed	Fewer than half of smokers who slipped went back to daily smoking within six weeks1; the relapse model treats a slip as reversible2	Evidence says no, or unsafe
Relapse-prevention training makes relapses rarer and milder in alcohol and drug treatment	Reviews summarized in a 1999 overview; no edge over other treatments for abstinence; less tested for other habits2	Strong evidence
Guilt and self-blame after a slip drive a full relapse (the abstinence-violation effect)	Low confidence after a slip predicted the next one; guilt and self-blame didn’t act as predicted1	Promising but early
Self-kindness after a slip helps you get back on track	Two small experiments and one smartphone diary study35	Promising but early
“The holidays add 5 pounds”	Average gain under a pound in an NIH study; 0.4 to 0.9 kg across studies68	Evidence says no, or unsafe
Regular self-weighing over the holidays limits gain	One trial of 272 adults; about a pound less gain, short follow-up9	Promising but early
Many people keep a meaningful weight loss for years, even with some regain	Half of a large trial’s lifestyle group kept off at least 5% at eight years10; registry data agree11	Strong evidence

Questions readers ask

The bottom line

Slips are a normal part of changing any habit, and most don’t have to become relapses. What turns a slip into a slide is often the meaning you give it, especially a loss of confidence and a sweeping verdict about yourself.

Treat a slip as a specific, solvable event. Be kind to yourself, find the situation that set it up, plan for next time and take one small step back toward your routine the same day. If slips keep speeding up, bring in help.

Related reading

• The part of you that resists every health change has its reasons
• Old habits run on cues rather than willpower, and you can rewire them
• A healthy identity supports good habits, while all-or-nothing food rules work against them
• Behavior science tested its own tricks at scale, and rewards and repetition held up
• Taking charge of your health helps, until it turns into blame

Sources

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2. Larimer ME, Palmer RS, Marlatt GA. “Relapse Prevention: An Overview of Marlatt’s Cognitive-Behavioral Model.” Alcohol Research & Health, 1999. pmc.ncbi.nlm.nih.gov
3. Adams CE, Leary MR. “Promoting self-compassionate attitudes toward eating among restrictive and guilty eaters.” Journal of Social and Clinical Psychology, 2007. scholars.duke.edu
4. Serpell L, Amey R, Kamboj SK. “The role of self-compassion and self-criticism in binge eating behaviour.” Appetite, 2020 (accepted manuscript). pubmed.ncbi.nlm.nih.gov
5. Drexel University. “Can Practicing Self-Compassion Help People Achieve Weight Loss Goals?” (news release on a study by Hagerman C and colleagues in Appetite). Drexel News, January 25, 2024. drexel.edu
6. Eunice Kennedy Shriver National Institute of Child Health and Human Development. “Holiday Weight Gain Slight, But May Last a Lifetime.” NIH news release, March 22, 2000. nichd.nih.gov
7. Yanovski JA, Yanovski SZ, et al. “A prospective study of holiday weight gain.” New England Journal of Medicine, 2000 (abstract record). pubmed.ncbi.nlm.nih.gov
8. Díaz-Zavala RG, Castro-Cantú MF, Valencia ME, Álvarez-Hernández G, Haby MM, Esparza-Romero J. “Effect of the Holiday Season on Weight Gain: A Narrative Review.” Journal of Obesity, 2017. doi.org
9. Mason F, Farley A, Pallan M, Sitch A, Easter C, Daley AJ. “Effectiveness of a brief behavioural intervention to prevent weight gain over the Christmas holiday period: randomised controlled trial.” BMJ, 2018. pubmed.ncbi.nlm.nih.gov
10. Look AHEAD Research Group. “Eight-year weight losses with an intensive lifestyle intervention: the Look AHEAD study.” Obesity, 2014. pmc.ncbi.nlm.nih.gov
11. Wing RR, Phelan S. “Long-term weight loss maintenance.” American Journal of Clinical Nutrition, 2005. unboundmedicine.com
12. Centers for Disease Control and Prevention. “Overcoming Barriers to Physical Activity.” CDC, updated February 5, 2025. cdc.gov
13. Centers for Disease Control and Prevention. “Five Reasons Why Calling a Quitline Can Be Key to Your Success.” CDC Tips From Former Smokers, updated November 12, 2024. cdc.gov
14. Substance Abuse and Mental Health Services Administration. “SAMHSA’s National Helpline.” SAMHSA, updated 2026. samhsa.gov