High Altitude Depression in Summit County, CO: Why Therapy Feels Harder at 9,000 Feet
Why Living at High Altitude Can Make Depression Harder to Treat (And What Actually Helps)
You chose this place on purpose.
Maybe you drove through Eisenhower Tunnel (that's the direction most folks come from Denver) or Loveland Pass (coming from Denver) for the first time, and something in you settled. Maybe you came for one ski season and just never left. Maybe you moved here because the mountains made you feel more like yourself than anywhere else ever had, and that felt like enough of a reason.
So why doesn't it feel like enough right now?
You're tired in ways that don't match your schedule. The off-season hits differently than you expect. You've tried the things people suggest. You're exercising, cutting back on the drinking, taking vitamin D, sleeping more. Maybe you even tried medication,n and it helped a little. Just not enough.
Here is something that almost nobody in this community talks about: the altitude itself may be making depression harder to treat than it would be anywhere else. Not because you're doing something because of where you live.
It's Not Just in Your Head. It's Literally the Air.
Breckenridge sits at 9,600 feet. Frisco at 9,097. Silverthorne at roughly 8,700. Summit County averages around 9,000 feet above sea level, which means the air your brain is working with every single day contains less available oxygen than the air at sea level.
That matters more than most people realize.
Serotonin production is tied to oxygen availability. At high altitude, lower oxygen levels suppress the brain's ability to synthesize serotonin. Serotonin is the neurotransmitter most associated with mood stability, emotional resilience, and that baseline sense of being okay. When it drops, everything feels slightly harder to manage. Sleep, motivation, the ability to let things roll off instead of sticking. The University of Utah Brain Institute has found that suicide risk increases by nearly one-third at elevations above 6,500 feet. Summit County sits significantly above that line.
At the same time, altitude elevates dopamine, the neurotransmitter linked to risk-taking and reward-seeking. For someone already navigating depression, that combination can intensify impulsivity, make coping mechanisms like drinking feel more appealing, and - in some cases - deepen the darkness.
Your brain at 9,600 feet is working with less of the chemical it uses to regulate your mood. That is not a character flaw. That is just altitude.
Why Your Medication Might Only Be Doing Part of the Job
This is the piece that I think matters most for a lot of people reading this.
If you have tried an antidepressant and it helped somewhat but never fully, that partial response may not mean the medication was wrong. It may mean the altitude changed how it works.
Researchers at the University of Utah tested the four most commonly prescribed SSRIs at different elevations. Three of them, fluoxetine (Prozac), paroxetine (Paxil), and escitalopram (Lexapro), showed reduced effectiveness at high altitude. The reason is straightforward: these medications work by increasing the availability of serotonin in the brain. When altitude has already suppressed serotonin production, there is simply less for the medication to work with. Sertraline (Zoloft) performed somewhat better because it relies on slightly different pathways, but the pattern held.
The University of Utah is currently running a clinical trial specifically investigating whether supplements like creatine and 5-HTP can augment SSRI effectiveness for people living at altitude who have not fully responded to standard treatment. The research is ongoing because the problem is real.
If your antidepressant has felt like it does about sixty percent of the job, that may be biologically accurate - not a failure on your part. Not necessarily the wrong medication. The altitude is part of the equation, and most prescribers are not accounting for it.
This does not mean medication is the wrong approach. For many people, it is an important piece. It means the relationship between medication and altitude is more complicated than most people are told, and that knowing about it can help you have a more useful conversation with whoever is prescribing for you.
The Other Half of the Picture: What Mountain Town Life Actually Does to People
The biology is real. It is also not the whole story.
Summit County carries a specific set of community conditions that layer on top of the neurochemical effects of altitude and make the mental health picture more complicated than it would be in a place with more stability built into its structure.
The community turns over constantly.
This county runs on four ski resorts and a revolving population of seasonal workers, tourists, and people who moved here for a life they are still building. Deep, lasting social bonds, the kind that actually protect mental health, are harder to form when the people around you cycle out every spring. Building genuine community here takes real work and real time. The transient nature of this place is not a personal failure because it is baked into the economy.
The off-seasons are their own thing.
If you have been here long enough to live through mud season, you know what I am talking about. The businesses close. The visitors leave. Income drops. The trails are inaccessible, the lifts are not running, and the thing that normally carries you through is just not there. Building Hope documents this pattern specifically: isolation increases during the off-seasons, substance use tends to climb, and people fall into darker places.
The financial pressure is real and mostly invisible.
Summit County has some of the most expensive housing in Colorado and a workforce that largely earns seasonal and service-industry wages. The gap between the cost of living here and what people make here is real. Chronic financial stress, the low-grade, ongoing kind, is one of the most significant predictors of depression. A lot of people living the mountain life are doing it while quietly running on empty financially.
The drinking culture
A 2017 study in Drug and Alcohol Dependence found that 82.9 percent of seasonal resort employees met criteria for risky alcohol use. Drinking is woven into how we socialize, celebrate, and cope. Alcohol is a depressant. At altitude, its effects intensify, which is why depression can be harder to shake in a ski town than elsewhere.
The paradise paradox is real.
Professional skier Bode Miller named it in his 2023 documentary "The Paradise Paradox": there is a specific cognitive dissonance of living somewhere objectively beautiful while privately struggling. Summit County's suicide rate between 2019 and 2023 was 17.5 per 100,000 people, above the national rate of 13.7. The mountains did not cause that, but the shame at struggling in paradise does not help.
The idea that you should be fine because the view is incredible, that you chose this and should be grateful, that you have no right to feel this way when other people would give anything to live here, keeps people from reaching out for help longer than almost anything else I see in my practice.
The mountains did not lie to you - this is a genuinely beautiful and genuinely hard place to live. Both things are true at the same time.
What Actually Helps When Standard Approaches Are Not Enough
If you are reading this because something has not fully worked, here is what I can tell you about what tends to help for people in this specific situation.
Start with the biological layer.
Vitamin D deficiency is extremely common at altitude, especially in the winter when sun exposure drops and the UV index is lower than the elevation might suggest. If you have not had your levels checked, it is worth doing. Sleep at altitude is genuinely disrupted, and sleep disruption compounds depression significantly. If alcohol is a regular part of how you wind down, reducing it will likely have more impact than most people expect, and at altitude that impact tends to be faster.
If you are on medication that is not fully working, have a direct conversation with your prescriber about altitude. Show them this post if it helps. Ask specifically whether the medication you are on has known altitude-related limitations and whether your dose or the combination makes sense given where you live. The University of Utah research is available, and your prescriber should be aware of it.
Consider approaches that work at the nervous system level, not just the thought level.
This is where I want to be honest about why I think EMDR is particularly relevant for people navigating high altitude depression, especially when standard approaches have not fully worked.
Depression at altitude has a biological component that affects how the nervous system regulates emotion. When the problem is partly in how the brain is processing and storing experience, not just in the content of your thoughts, approaches that work at that level tend to reach things that talk therapy alone sometimes misses.
EMDR works by targeting how distressing experiences are stored in the nervous system. It uses bilateral stimulation, guided eye movements, or tapping to help the brain process material that has gotten stuck. It does not rely solely on serotonin pathways. A 2024 meta-analysis of 25 randomized controlled trials found EMDR produced significant reductions in depressive symptoms with a moderate to large effect size, comparable to leading pharmacological approaches. For treatment-resistant depression specifically, adding EMDR to standard treatment resulted in a 50 percent remission rate in one study. The World Health Organization, the American Psychological Association, and the US Department of Veterans Affairs all recognize EMDR as an evidence-based treatment.
I want to be clear that EMDR is not a replacement for medication if medication is part of what is helping you. For a lot of people, it works alongside it. The point is that the nervous system level matters, and if something has not been working at the level of thoughts and conversation alone, going deeper is worth considering.
Get support that understands where you live.
This one matters more than it might sound. A therapist who has never lived in a mountain resort community, who does not know what mud season does to people, who has not watched what happens here in the off-season, is going to miss context that is directly relevant to what you are carrying. You should not have to explain Summit County to the person who is supposed to help you navigate it.
I have been in this community for over a decade. I see my clients on the mountain and at the grocery store. I understand the particular weight of this place because I live here too. That is not a liability. That is the point.
If you are in Summit County and ready to explore what individual therapy or EMDR can look like for your specific situation, I would be glad to talk. The first conversation is just a conversation.
Frequently Asked Questions
Does living at high altitude cause depression?
Research shows that altitude reduces serotonin availability in the brain, which is linked to higher rates of depression and suicide in mountain communities. Altitude is not the sole cause of depression, but it is a genuine contributing factor that is often underappreciated. Summit County, Colorado, sits at approximately 9,000 feet, significantly above the 6,500-foot threshold at which the University of Utah Brain Institute found suicide risk begins to increase meaningfully.
Why do antidepressants sometimes work less well at high altitude?
Studies from the University of Utah showed that three of the four most commonly prescribed SSRIs showed reduced effectiveness at high elevations because they work by increasing available serotonin, which altitude has already suppressed. This does not mean medication is not helpful, but it does mean altitude changes the equation in ways most prescribers do not account for.
What is the paradise paradox in ski towns?
The paradise paradox refers to the mental health crisis experienced by people in mountain resort communities who live in objectively beautiful places while struggling with depression, isolation, financial stress, and substance use at above-average rates. Summit County's suicide rate exceeds the national average, and the term has been used in public health research and a 2023 documentary to describe the specific shame dynamic this creates.
Is EMDR therapy effective for depression?
Yes. A 2024 meta-analysis of 25 randomized controlled trials found EMDR produced significant reductions in depressive symptoms, particularly in severe cases. EMDR is recognized by the World Health Organization, the American Psychological Association, and the US Department of Veterans Affairs as an evidence-based treatment. It is particularly relevant when depression has a nervous system component that has not fully responded to talk therapy or medication alone.
Where can I find a therapist who understands Summit County, Colorado?
Nurturing Wellness in Breckenridge offers individual therapy and EMDR for adults and adolescents in Summit County. Laura Landrum, LCSW, is a certified EMDR therapist who has lived and practiced in this community for over a decade. Telehealth is available throughout Colorado and Mississippi.
Crisis Resources
If you are in crisis or need immediate support, please reach out.
988 Suicide and Crisis Lifeline: Call or text 988
Colorado Crisis Services: Call 1-844-493-8255 or text TALK to 38255
Paragon Behavioral Health Connections: Call (303) 691-6095 or email contact@paragonbhc.org — paragonbhc.org
Crisis Text Line: Text HOME to 741741
About the Author
Laura Landrum, LCSW, LAC is a certified EMDR therapist and licensed clinical social worker based in Summit County, Colorado. Before becoming a therapist, she spent years as a backcountry guide, which is a longer story than it sounds. She works with adults, adolescents, and children in Breckenridge and throughout Colorado via telehealth. She is direct; she does not flinch at hard things, and there is nothing you can bring into the room that is going to send her running.
