Living with stress, anxiety, or depression makes an average day feel exhausting. Add in remote work and nonstop screen time, and it’s no wonder so many of us fall into a sedentary routine. When your emotional tank is empty, resting is a natural and necessary response. Your body is asking for a break.
But there’s a line between taking a much-needed break and getting stuck in a pattern that works against you. Without physical activity, your brain chemistry starts to change. Cortisol (the “stress hormone”) builds up in your system while your brain produces less dopamine and serotonin to keep your mood stable. In fact, one 2025 study found that sitting all day on the job increases the risk of severe mental health issues by up to 85%.
Rest is essential when you’re burnt out, but staying still eventually stops being restorative. Regular movement, whether that means walking, wheeling, adaptive yoga, or strength training, makes a meaningful difference in treating depression.
It’s why Brain-Body Therapy’s mental health exercise app was built: to grant everyday people feeling stressed from work and their daily lives access to at-home workout routines designed to help minimize burnout.
Here’s what to know about how a sedentary lifestyle impacts your mental health, and some critical exercises you can incorporate into your routine to relieve stress and feel better!
Key Takeaways
- A sedentary lifestyle suppresses dopamine and serotonin while elevating cortisol, significantly increasing the risk of anxiety, depression, brain fog, poor sleep, and low self-esteem.
- Research shows sitting 10 or more hours daily raises the likelihood of depressive symptoms by nearly 40%, making regular movement one of the most impactful lifestyle changes for mental health.
- Brain-Body Therapy offers diagnosis-specific workout programs for all fitness levels that combine cardio, strength training, and mindfulness to address anxiety and depression at home.
What Is a Sedentary Lifestyle and How Does It Affect Mental Health?
Sitting for six or more hours a day with minimal physical activity is the clinical definition of a sedentary lifestyle. But in reality, it’s less about the numbers on a clock and more about what happens when your physical world shrinks to the size of a desk chair.
“Our bodies are designed to move,” says Joshua K. Robinson, psychotherapist and owner of Stillwater Counseling. “When we’re sedentary, cortisol builds up and has nowhere to go. Over time, this can suppress dopamine and serotonin (the feel-good chemicals in our brain), which is why people who sit all day often feel both wired and flat at the same time.”
How a Sedentary Lifestyle Contributes to Mental Health Decline
Increased Risk of Anxiety
It might sound a little outlandish to say that resting only increases your anxiety, but it’s not that black-and-white. True rest is when your body is actively recovering, which is why most of us need at least eight hours of sleep a night, but being sedentary and devoid of physical activity for hours on end is detrimental to your mental health.
A 2015 systematic review in BMC Public Health found a clear link between high total sitting time and an increased risk of anxiety symptoms. Staying stationary all day deprives us of the baseline movement signals (like shifting positions, fidgeting, or stretching) that help regulate mood.
“A sedentary day can make the nervous system more stagnant and reactive,” says Oscar Trelles, a Wim Hof Method instructor and founder of Breathing Flame. Without some sort of physical release for daily tension, you’re left with a persistent, nervous energy that makes ordinary tasks feel overwhelming.
Depression and Low Mood
People who live sedentary lifestyles are also at a higher risk for depression. Inactivity fuels depression because when you’re confined to one space (e.g., a desk or couch), your physical world gets smaller, which naturally causes social withdrawal and cuts you off from active, health-promoting habits.
“Low mood makes you want to sit, and sitting makes the low mood worse, so it loops on itself,” says Jonathan Anderson, a licensed therapist and founder of Gate Healing. The less active you are, the more isolated you feel, locking you into a destructive downward spiral where the depression itself robs you of the very motivation needed to move and reconnect with the world.
According to one 2024 study published in Scientific Reports, data from over 4,700 U.S. adults showed that people who sat for 10 hours or more per day had a 39.8% higher likelihood of developing depressive symptoms and a 56.7% higher risk for moderate-to-severe depression.
Cognitive Decline and Brain Fog
Not moving for hours—or staring at a screen without taking a mental break—alters the brain’s attention networks. One 2024 review published in Trends in Cognitive Sciences found that this kind of inactivity weakens those networks and makes it much harder to make decisions or solve problems.
This happens because staying still naturally slows your circulation. Without regular movement to pump fresh oxygen and blood to your head, your brain goes into a sort of power-saver mode. Your processing speed drops, your neuroplasticity stalls, and you’re left in an uninspired haze that makes it impossible to focus on basic work or remember simple tasks. (If you’ve ever sat at your desk cross-eyed thinking “I just can’t think; my brain isn’t working!”—this is probably why!)
Poor Sleep and Fatigue
If you’re going to bed at a reasonable time only to wake up feeling like you haven’t slept at all, it could be a symptom of your lifestyle. When you spend the day sitting, your body doesn’t burn enough physical energy to build up a natural sleep drive (even if you feel exhausted).
A 2025 study analyzing data from over 23,000 U.S. adults found that sitting for more than 300 minutes (just five hours) a day increases your risk of developing a sleep disorder. Because you haven’t moved much, your body defaults to a shallow, restless sleep.
Naturally, this exhaustion spills right over into your mental health. Starting your day drained makes it that much harder to handle daily stress, which only worsens daytime anxiety and depression. And when you feel anxious, down, and exhausted? You’re probably going to spend the day right back on the couch, starting the cycle all over again.
Low Self-Esteem and Loss of Motivation
When you stack chronic exhaustion on top of brain fog, anxiety, and a flat mood, it’s only human for it to affect how you view yourself. Spending most of the day in one spot can make it easy to feel disconnected from your body, which, in turn, chips away at your self-confidence.
The Mental Health Benefits of Regular Exercise
Exercise as a Natural Antidepressant
Physical activity is one of the most powerful tools available for your mental health. When you exercise, your body releases serotonin, dopamine, and endorphins. These chemicals work together to improve your mood and help you regulate your emotions. In fact, research shows that regular exercise can be just as effective as medication for managing mild to moderate depression.
If you’re dealing with depression specifically, higher-intensity cardiovascular exercise (Zone 3) combined with strength training has been proven to increase energy, improve your mood, and support your overall motivation.
BBT builds on this research by tailoring its programs to your diagnosis. If you choose the app’s “Depression” track during setup, Phase 1 guides you through a predictable foundation of three days of higher-intensity cardio and two days of strength training a week.
“The usual advice is backward,” says Anderson. “Everybody waits to feel motivated. But motivation almost always shows up after you start moving, not before.”
Instead of chasing motivation, Anderson says to shrink your first step until it’s almost too small to say no to. You don’t have to white-knuckle your way into willpower. Just put your shoes on and stand in the driveway for two minutes. Figure out what small steps already work for you and give them a little more room.
Reducing Anxiety Through Movement
When you live with anxiety, your nervous system is essentially stuck in overdrive. Your body is flooded with cortisol and adrenaline, but since you’re just sitting still, that nervous energy has nowhere to go.
Adding moderate-intensity cardio (like Zone 2 training) and strength training to your routine gives those trapped stress hormones a place to go. Burning off that energy physically calms your body, helps regulate your nervous system, and builds your resilience over time.
Improved Sleep Quality
Physical activity helps regulate your circadian rhythm—the internal clock that tells your brain when it’s time to rest. When you burn off physical energy during the day, your body craves the deeper, more consistent sleep cycles needed to restore your mental stamina. Waking up with a fully recharged battery gives you the mental bandwidth required to handle daily stressors without spiraling.
Enhanced Cognitive Function and Mental Clarity
If staying in one place leaves you trapped in a loop of negative thoughts, getting up and moving does the exact opposite. It prompts your brain to produce brain-derived neurotrophic factor (BDNF)—a protein that essentially acts like fertilizer for your mind, supports neuroplasticity, and helps your brain build new, healthy connections so you can process information, sharpen your memory, and adapt to daily stress much more easily.
Building Confidence, Routine, and Momentum
When you’re stuck in a rut, your world shrinks, and your confidence usually goes with it. Showing up for a workout—even a short one—helps rebuild that lost sense of agency.
Plus, establishing a regular workout habit adds a reliable structure to your day. This consistency helps ground an anxious or depressed mind by removing the daily uncertainty of figuring out what to do next and providing a stable, predictable foundation for your long-term mental wellness.
Brain-Body Therapy’s Approach to Mental Health Through Exercise
Most fitness programs treat your body and your mind like they don’t belong to the same person. Brain-Body Therapy (BBT) does things differently.
The connection between movement and mental health is the foundation of Brain-Body Therapy (BBT). Built by founder Rio Wilson, a single mom who used movement to navigate her own trauma, anxiety, and depression, the app brings mental health and physical fitness together. Wilson earned a Master’s in Counseling and teamed up with BBT’s Director of Fitness, Luke Lombardo, a former Ironman triathlete, to create a safe space that merges therapeutic insights with diagnosis-specific workouts.
Your physical health and your emotional well-being go hand in hand. That’s why BBT’s custom workout plans focus on supporting your mental health, not just hitting gym milestones. The app meets you exactly where you are emotionally and physically on any given day to help you build a routine that sticks.
Custom Workout Programs for Anxiety and Depression
When you deal with anxiety or depression, a standard workout plan isn’t the answer. BBT uses tailored routines designed for the specific ways these conditions affect you physiologically—whether that means using structured cardio to calm a hyperactive nervous system or strategic intervals to lift a heavy mood. These routines are approachable and sustainable, even when you start with very little energy.
Accessible Exercise for All Fitness Levels
When you haven’t been active for months or years, starting a new routine can feel overwhelming. You don’t need any prior fitness experience or expensive gym equipment to get started here. The entry points are short, gentle, and specifically designed to help you break through that initial paralysis without burning out.
Mind-Body Integration
Movement helps your body, but you also need tools to help your mind cope. To address both, BBT’s workouts pair targeted physical movement with evidence-informed mindfulness principles. As you move, you’ll learn specific breathing techniques and psychological coping tools designed to lower your stress and regulate your emotions.
Take the First Step Toward Better Mental Health
You don’t have to wait for motivation to return before you begin changing your daily routine. Explore Brain-Body Therapy’s custom exercise programs to find a supportive, movement-based path toward relief today. Download the app today to get started (available on App Store and Google Play!)
If you’re an employer, a university administrator, or a family member looking to help, reach out to discover how Brain-Body Therapy’s broader programs support your entire community.
If you or someone you know is struggling with thoughts of self-harm or suicide, please know that you are not alone and help is available. You can call or text the Suicide & Crisis Lifeline at 988 (available 24/7) to speak with someone right away.