Ever look around and think: there just isn't any. more. room? It seems that as soon as we take a carload of bags to the donation center, whatever space or order we have been able to forge is almost immediately replaced with more stuff.
It's exhausting. It's defeating. It's depressing. And it can all be explained by the way our brain is wired.
Our brain on clutter
Described as anything that is kept, even though not used, needed or wanted, clutter can also be defined as having a disorganized and overwhelming amount of possessions in our living space, cars or storage areas. Clutter creates stress that has three major biological and neurological effects on us—our cortisol levels, our creativity and ability to focus, and our experience of pain.
But clutter isn't just physical. "When you have to-do items constantly floating around in your head, or you hear a ping every few minutes from your phone, your brain doesn't get a chance to fully enter creative flow or process experiences," says Mark Hurst, author of Bit Literacy, a New York Times bestseller on controlling the flow of information in the digital age.
The overconsumption of digital stuff—like social media notifications, news feeds, games and files on our computer—competes for our attention, creating a digital form of clutter that has the same effect on our brain as physical clutter.
Neatness and order support health—and oppose chaos.
So, what is going on? Our brains love order. The human body consists of thousands of integrated and interdependent biological and neurochemical systems, all organized and operating along circadian rhythms, without which our bodies would disintegrate into chaos. It's no wonder that the organization within our very own bodies naturally extends to the desire for order and tidiness in our homes. And, "order feels good, in part, because it's easier for our brains to deal with and not have to work so hard," says psychotherapist and professional organizer Cindy Glovinsky.
The science of cortisol
No matter the ways, reasons and means by which the creep of stuff exceeds our ability to mentally and physically manage it—all of it amounts to stress. Clutter can trigger the release of the stress hormone cortisol, which can increase tension and anxiety and lead to unhealthy habits. Cortisol is a hormone produced in response to stress by the hypothalamus-pituitary-adrenal axis (HPA).
Chronic clutter can create prolonged stress, throwing us into a state of low-grade, perpetual fight-or-flight—the system designed to help us survive. The fight-or-flight response involves the complex interaction of many body systems and organs that activate needed functions and minimize unnecessary functions during times of stress. These systems must remain in balance to maintain optimum physical and psychological health.
According to a Cornell University study from 2016, stress triggered by clutter may also trigger coping and avoidance strategies, like eating junk food, oversleeping or binge-watching Netflix.
If we are not stressed, we get most of our cortisol in the morning to get us going. Levels taper off the rest of the day if we are relaxed, enabling us to enjoy psychological and physical well being. But a messy home environment can prevent our body's cortisol levels from naturally declining throughout the day. Taxing this system eventually results in higher levels of depression and anxiety, and a lower capacity to think clearly, make decisions, and stay focused.
To supply the body with the energy needed to deal with stress, there are several physiological changes that occur with elevated cortisol levels:
- Diversion of blood flow to the muscles from other parts of the body
- Increased blood pressure
- Increased heart rate
- Increased blood sugars
- Increased fats in in the blood
If there is no relief from stress, all of these changes are bad for healthy brain activity and can cause lasting negative changes in brain function and structure. Additionally, when stress raises our body's cortisol levels, our overall health can be adversely affected, including organ damage, the suppression of our immune, endocrine and reproductive systems, the lowering of our metabolism, and the disruption of our sleep cycle, to name a few.
It is difficult to maintain a state of wellness over time when our body energy is channeled into coping with stress.
Just as concerning, when we are in a state of chronic stress and not thinking clearly, we tend to only see that which is negative and reinforces our sour point of view, perceived lack of social support and subsequent poor interrelationships.
Research from a 2009 study out of UCLA's Center on Everyday Lives of Families (CELF) has shown that women who perceive their homes to be cluttered tend to have unhealthy patterns of cortisol levels. A team of professional archaeologists, anthropologists and other social scientists studied the home life of 32 middle-class, dual-income families with 2-3 children of ages 7-12 in Los Angeles. In the study, family members recorded self-directed home tours describing objects and spaces in their homes, during which saliva samples were taken at regular intervals to measure cortisol levels.
The data were collected for three days and compared to and correlated with vast amounts of other data previously collected over the course of four years. According to the CEFL study, the amount of stress women experience at home is directly proportional to the amount of stuff they and their family had accumulated.
We see what is relevant to us.
It's interesting to note in the UCLA study that men did not exhibit the same results, having normal cortisol fluctuations. Presumably they were not as stressed by the amount of stuff in their home. This can be explained possibly by the results of other studies that have shown that the home is traditionally perceived as women's domain and ultimate responsibility, even in households where both partners work.
Other studies also support the finding that if men don't think the responsibility of keeping the house tidy is relevant to them, they may not be inclined to see the clutter and so are not as stressed about it.
This may be explained further in part by research that has indicated that there are distinct differences in vision between men and women, since men have 25% more neurons in their visual cortex, a part of the cerebral cortex that processes visual information. The irony is that even though the visual cortex of a man has more neurons than a woman's, men are impacted more by the things they see that they think have to do with them, and less by the things they think do not.
The science of focus
From our computer desktop, to our car, to our kitchen counter and fridge—clutter is clutter, and it affects us whether we think so or not.
In a study by the Princeton University Neuroscience Institute, researchers monitored task performance when an individual was surrounded by organized versus disorganized environments.
Overall, subjects were more productive, less irritable and distracted in the clutter-free environment versus the disorganized environment where their stress increased.
Researchers concluded that physical clutter in our environment can overload the visual cortex, competing for attention in our brain and interfering with our ability to focus and process information.
So what's happening in our brain?
There are two neural mechanisms at work that interact dynamically when processing information. Stimulus-driven fast reactions and quick visual identification are considered bottom-up processes because they rely primarily on sensory information, whereas context-dependent motor control and directed attention are considered top-down processes because they are goal-directed. These two mechanisms work together to organize in our brain the visual stimuli—aka, clutter—in our home.
There is a reason why we have an urge to straighten up at home before we can sit down to focus on selecting a new healthcare plan.
The brain has a limited capacity to process information. To filter out extra stimuli and focus on what we are trying to achieve at any given moment, the top-down and bottom-up attention mechanisms compete. By mutually suppressing each other, brain power is exhausted, and ultimately we lose focus. Whether we know it or not, a kitchen counter stacked with mail and basket full of unfolded laundry can be as distracting to us as a toddler in the throes of a tantrum.
The science of decluttering
Now that we know what all of our extra stuff is doing to our health and ability to function, it's time to get rid of it, right?
...Oh, but if it were only that easy.
We collect things for many reasons–maybe we think we'll need to use them later, or they have sentimental value, or we spent good money on them so feel we need to keep them, even if we've never used them.
It literally can hurt our brain to get rid of things we probably made a mistake buying in the first place. Most of us can accomplish this with a little dedicated time and some degree of mild discomfort, though there are others who cannot manage to part with one. single. thing.
The American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-V) states that people with hoarding disorder have a conscious, ongoing compulsive urge to acquire unusually large amounts of possessions and an inability to voluntarily get rid of those possessions, even when they have no practical usefulness or real-world value, such as old magazines, newspapers, notes, outdated clothing, or old mail.
To understand what goes on in our brain when we throw things out, researchers at the Yale School of Medicine recently studied compulsive hoarders using functional magnetic resonance imaging (fMRI) brain-scan technology. While in the scanner, hoarders considered various possessions to determine whether to keep them or not. The items were destroyed in front of them, so they knew their decision was irreversible.
The pain is real.
When people with hoarding tendencies were faced with throwing out something with personal value, two regions of the brain associated with conflict and physical pain showed greater signs of activity, the Anterior Cingulate Cortex (ACC) a part of the brain involved in decision-making and planning, and the Insula, the same area that produces nicotine cravings. By comparison, people who didn't hoard showed no extra brain activity. These are the same areas of the brain that light up when you feel physical pain from stubbing your toe or burning your mouth with hot coffee.
The brain views the loss of a valued possession the same way it does something that causes physical pain. Although most people don't experience heightened ACC/Insula activity to this degree, we can all identify with the feeling of angst when finally tossing that pile of unread magazines, or those ticket stubs from last summer's trip to New York to see Hamilton.
The scientific benefits of decluttering
The good news is, those who suffer from hoarding respond well to Cognitive Behavioral Therapy. For the rest of us... there is decluttering.
In addition to improving our mood and focus, decluttering often acts as a catalyst to taking better care of other aspects of our life. "By purging unneeded items from our homes, it is like deleting files to create disk space on your computer. Suddenly, the whole operating system is more efficient… this decreases stress and increases your effectiveness personally and professionally," says Licensed Clinical Professional Counselor, Joyce Marter.
A study by Pamela Thacher, assistant professor of psychology at St. Lawrence University in Canton, N.Y., found that "People who sleep in cluttered rooms… are more likely to have sleeping problems. This includes having trouble falling asleep at night and experiencing rest disturbances." Additionally, people who make their beds every morning experience longer, more restful sleep, especially when they use fresh, clean sheets.
Researchers at the University of Minnesota found that people who spent time in an unorganized room were twice as likely to eat a chocolate bar than an apple. And researchers at Florida State University reveal a link between hoarding and obesity, noting that "people with extremely cluttered homes are 77% more likely to be overweight."
In a more organized home, there is more time to plan and more space to prepare healthier meals, as well to relax and eat more slowly.
Research scientist and associate professor Nicole R. Keith, Ph.D., at Indiana University found that people with clean houses are healthier than those with messy houses, and tidy homes were even more of a predictor for physical health than neighborhood walkability.
In the study, Keith and her colleagues tracked the physical health of 998 African Americans between the ages of 49 and 65, a demographic known to be at an increased risk for heart disease. Those who kept their homes clean were healthier and more active than those who did not, the process of keeping a home clean constituting exercise.
Our stuff is consuming our energy and robbing us of health and satisfaction.
Since our brain is able to absorb only 1% of the visual information it gets, this suggests that information overload is real. Decluttering our home of things that bring us neither joy nor use can help us create spaces that help us relax, restore and rejuvenate.
So instead of blaming ourselves for noticing too much, or our partners for noticing too little, maybe we can just know that our brains are geared for order, step outside for some fresh air, and then enlist the family in clearing the path for a more peaceful and refreshing home.
Fewer, better, more beautiful. For the brain, less is actually more.