Giving up one pleasure for 30 days does more than test willpower. It resets how much you enjoy that pleasure and strengthens your sense of control over your own life.
- A 2013 Harvard study found people who abstained from chocolate for a week enjoyed it more afterward than people who ate it freely or on their own schedule.
- Psychologist Julian Rotter’s concept of locus of control links the belief that you steer your own life to better health, higher productivity, and greater satisfaction.
- Choosing to give something up for a partner, rather than to avoid conflict, is tied to higher relationship satisfaction for both people.
Six days into a week-long fast with nothing but water and vitamin supplements, I bit into a cucumber and it tasted like candy. A grape a day later made my face pucker like I’d bitten a lemon. Nothing about the produce had changed. I had.
Most people miss this part about Lent, dry January, or any other stretch of deliberate abstinence. The absence itself changes your baseline for what pleasure feels like.
For 40 days before Easter, Catholic tradition asks people to give up something they enjoy, echoing the 40 days Jesus spent in the wilderness. You don’t need the theology to use the mechanism. You need 30 days and one pleasure you’re willing to put down.
The chocolate experiment
In 2013 researchers ran an experiment that measured exactly what my cucumber told me anecdotally. Their study, Give It Up: A Strategy for Combating Hedonic Adaptation, split participants into 3 groups for one week. One group ate chocolate whenever they wanted. One group ate as much as they could stand. One group gave it up entirely.
A week later, everyone ate chocolate again in a lab session. The group that had abstained enjoyed it more and reported better moods afterward than either of the other two groups. The group that binged lost some of its taste for chocolate. The group with no restrictions felt no different at all.
The mechanism has a name: hedonic adaptation. Your brain treats repeated pleasure as the new normal and stops registering it as pleasure at all. The second slice of cake never hits like the first. The tenth episode of a show never hits like the pilot. Removing the pleasure for a stretch undoes that adaptation, so it works on you again once you bring it back.
This also explains why a trip makes your own bed feel like a small miracle when you get home, and why a week without your phone makes a real conversation feel unusually vivid. The comfort didn’t improve. Your sensitivity to it did.
What quitting does
Psychologist Julian Rotter spent the 1950s and 1960s studying a trait he called locus of control where people believe the causes of their life sit. People with a strong internal locus of control believe their actions drive their outcomes. People with a strong external locus believe outcomes come from luck, fate or other people, regardless of what they do.
Rotter’s research and the decades of work that followed it link an internal locus of control to better health outcomes, higher productivity and greater life satisfaction. People who believe their actions matter tend to act more, and follow through more, than people who believe the outcome was decided already.
Choosing to quit something small and following through is one of the fastest ways to prove that belief to yourself. Admiral William McRaven built an entire commencement speech around a single instruction:
“Make your bed every morning!”
A made bed doesn’t change your day. It’s proof, first thing, that you did what you said you’d do. 30 days without sugar or Instagram works the same way. Every morning you don’t reach for it is a data point that you’re the one steering.
The freedom trap
There’s a flip side to this that rarely makes it into the wellness advice. Newfound freedom, with no structure attached to it, tends to produce the opposite of discipline.
I watched this happen to myself in my twenties. Living on my own for the first time after years of house rules, I ate what I wanted, stayed up as late as I wanted, and skipped whatever I felt like skipping. It felt like release. It functioned like a leash coming off a dog that immediately eats two sticks of butter out of the fridge. The freedom was real. So was the cost.
Restraint, chosen on purpose, is what keeps freedom from curdling into that. It’s not the opposite of freedom. It’s the maintenance freedom requires to keep working.
Sacrifice changes a relationship
Reserchers ran a study titled Giving Up and Giving In, that tracked couples logging daily sacrifices for their partners. People who gave something up to make their partner happy or to build closeness reported higher personal well-being and higher relationship satisfaction. So did their partners.
The researchers found a condition on that benefit, though. People who sacrificed to avoid a fight or dodge their partner’s disappointment didn’t see the same lift. Same act, different motive, different outcome. Giving up your Saturday morning to help your partner’s parents move, because you want to support them, lands differently than giving it up because you’re afraid of the argument if you don’t.
My mother spent two decades moving every year or two for my father’s military career, setting aside her own career plans each time. They’re one of the steadier, happier couples I know forty years later. The sacrifice wasn’t painless. It also wasn’t resentment. She made it because she believed in the marriage, not because she was avoiding a fight about it, and the difference shows up in exactly the way Impett’s data predicts.
How to run your 30 days experiment
Pick one thing.
Small works. Skip the second coffee instead of quitting caffeine outright. Read for 20 minutes before bed instead of scrolling, rather than banning your phone from the house. Have one drink at the party instead of four. The chocolate study didn’t ask anyone to give up food. It asked them to give up one specific pleasure for one specific week, and that was enough to change how much they enjoyed it afterward.
Expect the first week to feel like nothing. Cravings peak early and fade. If you’re white-knuckling it on day 25, you picked something too central to your routine, or you’re not sleeping enough to have the willpower for it.
Notice what you reach for in the gap. A dropped habit leaves a real hole in your day, and what fills that hole matters. Some people replace a habit with a better one. Some people replace it with a different bad one and call it progress. Pay attention to which one you’re doing.
Decide on day 30, not day 1, whether you’re going back. The whole design of the experiment is to let the 30 days answer the question instead of your cravings on day 1 answering it for you.
The bottom line
The version of this that sticks isn’t the one where you suffer through 30 days and count down to relief. It’s the one where day 31 becomes a genuine choice, made by someone who now knows exactly what that pleasure costs and exactly what it’s worth. Pick the thing you’d miss the least to explain to a friend and the most to give up. That gap is where the experiment starts working.
Frequently asked questions
How long does it take to break a habit through abstinence?
Cravings for most habitual pleasures peak in the first one to two weeks and fade from there. The Quoidbach and Dunn chocolate study (https://doi.org/10.1177/1948550612473489) only ran participants through a single week and still measured a change in enjoyment and mood, so even a short stretch produces a measurable shift. Thirty days gives enough distance to feel the change past the initial withdrawal phase.
Is a 30-day abstention challenge the same as Lent?
It borrows the structure of Lent, which runs roughly 40 days and asks Catholics to give up something they value, but it doesn’t require any religious belief to work. The mechanism behind it, hedonic adaptation, operates the same way whether the 30 days are framed as spiritual discipline or as a personal experiment.
Does giving something up really make you enjoy it more when you go back?
Yes, according to the 2013 study by Jordi Quoidbach and Elizabeth Dunn (https://doi.org/10.1177/1948550612473489). Participants who abstained from chocolate for a week enjoyed it more and felt better after eating it again than participants who ate it freely, because temporary removal reverses hedonic adaptation, the process by which repeated pleasure stops registering as pleasure.
What’s the difference between locus of control and willpower?
Willpower is the moment-to-moment effort of resisting a specific urge. Locus of control, a concept developed by psychologist Julian Rotter, is the broader belief about whether your actions or outside forces determine your outcomes (https://en.wikipedia.org/wiki/Locus_of_control). Following through on a 30-day commitment builds the belief, not just the moment of resistance.
What should I give up for 30 days if I’ve never done this before?
Start with something specific and bounded rather than an entire category. Giving up your second cup of coffee is easier to sustain and easier to measure than “quitting caffeine,” and a narrow, well-defined restriction is less likely to be abandoned mid-month than a sweeping one.
Resources
- Quoidbach, J. & Dunn, E. W. (2013). “Give It Up: A Strategy for Combating Hedonic Adaptation.” Social Psychological and Personality Science, 4(5), 563-568. https://doi.org/10.1177/1948550612473489
- Impett, E. A., Gable, S. L., & Peplau, L. A. (2005). “Giving Up and Giving In: The Costs and Benefits of Daily Sacrifice in Intimate Relationships.” Journal of Personality and Social Psychology, 89(3), 327-344. https://doi.org/10.1037/0022-3514.89.3.327
- Rotter, J. B. (1966). “Generalized Expectancies for Internal Versus External Control of Reinforcement.” Psychological Monographs, 80(1). Overview: https://en.wikipedia.org/wiki/Locus_of_control
- McRaven, W. H. (2017). Make Your Bed: Little Things That Can Change Your Life…And Maybe the World. Grand Central Publishing.
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