Is Owning Less Stuff Actually Better for Your Mental Health?
Yes, and science backs it up. Research consistently shows that owning fewer possessions reduces stress, lowers cortisol levels, and improves focus and mood. A cluttered environment competes for your brain’s attention and creates a low-grade sense of responsibility that never fully switches off. Voluntary simplicity, the deliberate choice to own less, is linked to enhanced wellbeing, reduced anxiety, and stronger social connections.
When we lived the old conventional life, it was perfectly normal to own a lot. That is how we grew up; that is how we learned it: material things belong to status and are absolutely necessary. I know people who own entire dressing rooms, several wine refrigerators, and decorative items for every occasion. That this excessive consumption is not only bad for the environment but also for one’s own psyche has meanwhile been scientifically proven.
Why is it so bad to own a lot? How can we do better? Find out here.
Why Owning Less Stuff Affects Your Mental Health: The Science
Previous research shows that materialistic aspirations are negatively associated with happiness and psychological health. It has been shown that spending money on life experiences makes people happier than spending money on material possessions. Thinking about experiential purchases evokes more positive feelings than thinking about material purchases.
In other words, spending money on a long-awaited expedition to Africa or an extended weekend at the lake with friends makes you happier than buying a new car or your fifth winter coat.
Interesting Scientific Facts Worth Knowing
According to a study by Chaplin & John (2007), there is a strong link between low self-esteem and materialism, usually derived early in childhood. That low self-esteem causes materialistic tendencies. Experiences give us the opportunity to share unique moments with other people, while the purchase of material items can isolate us from others.
Excitement caused by new experiences releases endorphins and creates a state of happiness that can be increased with minimalism. Experiential purchases make people happier, as they are more likely to resist negative comparisons and to promote successful social relationships more strongly than material purchases. And here is something that surprised me when I first read it: a chaotic environment can create a vulnerability to making unhealthy food choices. Your mindset in that environment can either trigger or buffer against that.
The stuff around you shapes you more than you think.
When Possession Overwhelms
Do you have one or more pieces in your closet that still have the price tag on them? Have you ever accidentally bought something twice because you could not find it in the middle of all your stuff? Then you are not alone. And that is exactly why Marie Kondo and all minimalists have their raison d’être.
The human brain is not made for this overload. Especially for this overload of responsibility. Yes, read correctly. A lot of belongings are exhausting for your brain. Because with it comes the obligation to have the space for things (and that costs money), you have to keep it dry and maybe warm. You have to make sure it is clean and maintained. And all this for things you rarely, or maybe never, need. Or, even more extreme, things whose existence you may have even forgotten.
That cannot be right, can it?
Ask yourself: what would your life look like if your mind had fewer things to process?
What Does Owning Less Actually Mean?
Owning less stuff does not mean living in an empty white room with one chair and a single houseplant. That is a caricature. What it actually means is intentional ownership: keeping the things that genuinely serve your life and letting go of the things that simply occupy space, mental bandwidth, or money.
The line is different for everyone. For a family of four, owning less might mean halving the number of toys, clearing one kitchen drawer, or stopping the habit of buying new clothes to replace clothes that still fit. For a solo traveler, it might mean fitting everything into a carry-on. The point is not the number. The point is the intention.
When you own something intentionally, you know you have it, you know where it is, and it earns its space. When you own something accidentally, out of guilt, habit, or a sale you could not resist, it becomes noise. And noise, as the research above shows, has a measurable cost to your brain.
The Benefits of Minimalism
The benefits of living with fewer material items are clear:
- More physical space
- Easier to find things
- Increases your productivity
- Easier to handle
- Less financial pressure
- More focus on quality than quantity
- You appreciate the things you have more
- More time and freedom
- You are a role model for others, especially young people
- You are comparing less
- Better for the environment
- Focus on more important things, like experiences and social connections
How Clutter Affects Your Brain: The Science of Cognitive Overload
A cluttered environment does not just look messy. It actively competes for your brain’s attention. Research published in the Journal of Neuroscience found that visual clutter reduces your ability to focus and process information, because your brain treats every visible object as an incomplete task waiting to be resolved. That is called cognitive overload. And it is exhausting.
Stress hormone levels (cortisol) are measurably higher in people who describe their homes as cluttered, according to research from UCLA’s Center on Everyday Lives and Families. Women in particular showed a sustained spike in cortisol throughout the day when they used words like ‘cluttered’ or ‘disorganized’ to describe their living space.
So when you feel irritable or drained at home and you cannot quite explain why, your stuff might literally be the problem.
What Is the 3-3-3 Rule for Decluttering?
The 3-3-3 rule for decluttering is a quick triage method: pick any area of your home, choose 3 items to throw away, 3 items to donate, and 3 items to relocate to where they actually belong. That is nine decisions, made in minutes, with immediate visible results.
It is not about emptying your home in one weekend. It is about building the habit of letting go in small, repeatable doses. The psychological win of seeing a slightly clearer shelf or drawer is often enough to keep the momentum going.
Some people run a 3-3-3 session every Sunday. Others do it whenever a space feels chaotic. Either way, the rule works because it removes the paralysis of ‘where do I even start’ by making the answer absurdly small: start with three things.
What Is the 30/30 Rule for Minimalists?
The 30/30 rule is a simple decision-making tool for people trying to own less. Before buying something, ask yourself two questions: could I replace this item for less than $30? And could I get a replacement within 30 minutes if I needed one? If the answer to both is yes, you do not need to own it.
The rule was popularized by minimalism advocates Joshua Fields Millburn and Ryan Nicodemus (The Minimalists) as a way to break the habit of ‘just in case’ ownership. It directly reduces the mental load of possessions, because you stop accumulating backup items that take up physical space and mental bandwidth.
It is a surprisingly liberating shift once it becomes a habit.
Does Minimalism Help with ADHD?
For people with ADHD, a cluttered environment is not just annoying. It can actively derail focus, increase impulsivity, and make it harder to regulate emotions. Many ADHD coaches and therapists actively recommend reducing visual noise in living and working spaces as a first-line strategy. The fewer objects competing for attention, the easier it is to direct focus where it needs to go.
That said, minimalism is not a cure for ADHD. And a space that is too sparse or rigid can feel sterile in a way that is demotivating for some people. The sweet spot is a calm, organized space with clear visual systems, not a perfectly empty room.
If you have ADHD and have ever noticed you work better in a tidy space, that is not a coincidence.
How to Start Owning Less: Practical First Steps
Knowing that owning less stuff is better for your mental health is one thing. Actually getting started is another. Here is where most people get stuck: they try to tackle everything at once, get overwhelmed, and give up before the drawer is even half empty.
A better approach is to start with one category, not one room. Clothes are the most common entry point because the attachment is lower than with sentimental items and the results are immediately visible. Ask yourself: does this fit, do I wear it, do I love it? If all three answers are not yes, it goes.
From there, move to duplicates. Most households own at least three of things they only need one of: scissors, phone chargers, sets of sheets, spatulas. Cutting duplicates is a fast, low-emotion way to reduce volume without touching anything sentimental.
Finally, introduce a one-in-one-out rule going forward. Every new item that enters your home means one item leaves. It is the simplest way to stop the slow accumulation from starting again.
Key Takeaways
- Clutter raises cortisol. Less stuff means less stress.
- Experiences beat purchases for lasting happiness.
- Low self-esteem and materialism are strongly linked (Chaplin & John, 2007).
- 30/30 rule: under $30 and found in 30 min? Skip it.
- 3-3-3 rule: toss 3, donate 3, relocate 3.
- Visual clutter causes cognitive overload and poor focus.
- ADHD focus improves in calm, organized spaces.
- Minimalism removes barriers to happiness, it does not add them.
Conclusion
Does minimalism make you happy? This alone probably not. But can it lead to a happier, more carefree life on a number of levels? Yes, definitely!
Since 2019, we have been living a life where we live out of 5 suitcases, and I have never been happier than I am right now. Are you interested in starting a more minimalistic lifestyle? Let me know in the comments what you are struggling with!
Thank you for reading and for making me part of your day!
Yours, Lulu
Frequently Asked Questions
Are people with fewer possessions actually happier?
Research says yes, within limits. Studies consistently show that spending money on experiences rather than material possessions produces more lasting happiness. People who own less also report lower stress, more mental clarity, and stronger social connections. The happiness gain comes from intentional ownership: keeping what genuinely serves you and letting go of the rest. Extreme deprivation is not the goal.
What is the 30/30 rule for minimalists?
The 30/30 rule is a buying filter: before purchasing something, ask whether you could replace it for under $30 and find a replacement within 30 minutes. If both answers are yes, you do not need to own it. The rule was popularized by The Minimalists as a way to break ‘just in case’ buying habits and reduce the mental load of owning too many backup items.
What is the 3-3-3 rule for decluttering?
The 3-3-3 decluttering rule means choosing 3 items to throw away, 3 items to donate, and 3 items to relocate to where they actually belong. Nine decisions, made fast, with immediate visible results. It works by removing the paralysis of not knowing where to start. Running a 3-3-3 pass on any cluttered area takes under 10 minutes and builds the habit of letting go in small, repeatable steps.
Does minimalism help with ADHD?
For many people with ADHD, yes. A visually cluttered environment increases distraction and makes emotional regulation harder. Reducing visual noise in living and work spaces is a commonly recommended strategy by ADHD coaches and therapists. A calm, organized space with clear systems supports focus better than either a cluttered room or a completely bare one. Minimalism is not a cure for ADHD, but it removes one of the biggest environmental triggers.
What is the 3-3-3 rule in mental health?
The 3-3-3 rule in mental health is a grounding technique for anxiety: name 3 things you can see, 3 sounds you can hear, and move 3 parts of your body. It refocuses attention on the present moment and interrupts anxious thought spirals. It is separate from the 3-3-3 decluttering rule, but both share the same core idea: reducing what your brain has to process at once lowers anxiety and improves emotional regulation.
Does a messy home actually affect your mood?
Yes. Research from UCLA’s Center on Everyday Lives and Families found that people who described their homes as cluttered had measurably higher cortisol levels throughout the day. Visual clutter creates a background sense of unfinished business that the brain cannot fully ignore, which contributes to chronic low-grade stress, fatigue, and difficulty concentrating.
How does owning less save money?
Owning less reduces costs in several concrete ways: you buy less impulsively, spend less on storage space, and stop paying to maintain things you rarely use. Minimalists also report fewer duplicate purchases because they can actually find what they own. Over time, a smaller, intentional wardrobe or home tends to shift spending toward quality items that last, which reduces replacement costs.
One Response
Dear Carla, thank you for your feedback! I’m so happy the article was interesting for you. Yes, on point – you exactly describe the benefits of having less stuff. I’m glad you found out for yourself that it’s the right way to go.