Anxiety Makes Me Tired: Why It Happens and How to Get Your Energy Back
If a day full of worry leaves you feeling like you ran a marathon while sitting at your desk, you’re not imagining it. That bone-deep tiredness is real, and there’s a good reason your body responds this way. Let’s gently unpack the science behind it and look at some simple, everyday steps that can help you feel more like yourself again.
Key Takeaways
- Fatigue is a well-recognized symptom of anxiety, not something you’re imagining or exaggerating.
- The body’s stress response (cortisol and adrenaline) can stay switched on longer than needed, draining physical energy.
- Worry itself takes mental effort, and ongoing rumination keeps the body in a state of low-grade alertness.
- Anxiety and poor sleep often reinforce each other, creating a cycle that deepens tiredness.
- Movement, slow breathing, a steady wind-down routine, and mindful caffeine timing can all help ease anxiety fatigue.
- Speaking with a therapist can offer support and personalized tools when fatigue and anxiety feel hard to manage alone.
Looking for help from a therapist for either individual sessions or couples therapy? Serenium has 150+ therapists at multiple locations in NJ and online and accepts most insurance. View our therapists and call us at 877-575-7957 to speak with our team, learn more, or schedule your first session
Yes, Anxiety Can Genuinely Make You Tired
Anxiety isn’t just a feeling in your head. It shows up in your body too, and fatigue is one of its most common companions. In fact, persistent tiredness is recognized as one of the hallmark symptoms of generalized anxiety, right alongside restlessness and trouble concentrating. The connection between anxiety and exhaustion has been explored in depth by sleep scientists, and the research helps explain why a worried mind can leave you feeling physically drained.
Why Anxiety Wears You Out: What the Science Says
Your Body Stays on Alert Longer Than It Needs To
When anxiety kicks in, your body activates its stress response, releasing hormones like cortisol and adrenaline to prepare you for a threat. This system is wonderfully useful for short bursts of real danger. The trouble starts when it stays switched on for hours or days at a time over everyday worries. A study looking at cortisol patterns in people with anxiety found that this prolonged activation can throw off the body’s natural rhythm, and that kind of sustained alertness takes a real physical toll.
Worry Takes Real Mental Energy
Racing thoughts aren’t free. Your brain spends genuine effort cycling through worries, replaying conversations, and bracing for what might go wrong. Psychologists call this pattern “perseverative cognition,” and research on the topic suggests that this kind of repetitive worry keeps the body’s stress response running in the background, which can contribute to tension, fatigue, and other physical symptoms, even when nothing is actively happening around you.
Anxiety and Poor Sleep Feed Each Other
Anxiety has a knack for showing up right when you’re trying to wind down. Racing thoughts at bedtime, difficulty falling asleep, and waking up in the middle of the night are common. A recent study on the relationship between sleep and mental health found that sleep disturbance and anxiety often reinforce one another in a loop. Poor sleep heightens anxiety, and anxiety makes good sleep harder to come by, which leaves you starting each day already running on empty.
Looking for help from a therapist for either individual sessions or couples therapy? Serenium has 150+ therapists at multiple locations in NJ and online and accepts most insurance. View our therapists and call us at 877-575-7957 to speak with our team, learn more, or schedule your first session
Gentle, Practical Steps to Ease Anxiety Fatigue
The good news is that small, consistent changes can make a meaningful difference. Here are a few approachable places to start.
1. Move your body, even just a little. You don’t need an intense workout. A short walk, some stretching, or light cardio can help. A research review found that regular physical activity meaningfully reduced anxiety symptoms across multiple studies, which in turn can ease the fatigue that comes with it.
2. Try slow, deliberate breathing. Slowing your breath down, especially longer exhales than inhales, signals to your nervous system that it’s safe to relax. A study on guided slow breathing found it helped lower physical markers of stress, including cortisol, in just a short session.
3. Protect your wind-down routine. A calm, predictable hour before bed (dim lights, no screens, something soothing like reading) gives your nervous system a chance to downshift before sleep.
4. Give your worries a scheduled outlet. Setting aside ten or fifteen minutes earlier in the day to jot down what’s on your mind can help quiet the urge to ruminate later, when you’d rather be resting.
5. Be mindful of caffeine timing. Caffeine can heighten the same physical sensations as anxiety, like a racing heart or jitteriness, so having it earlier in the day rather than later may help.
6. Be kind to yourself along the way. Fatigue from anxiety isn’t a personal failing or a sign you’re not trying hard enough. It’s a physical response to a system working overtime, and treating yourself gently is part of the recovery.
Looking for help from a therapist for either individual sessions or couples therapy? Serenium has 100+ therapists at multiple locations in NJ and online and accepts most insurance. View our therapists and call us at 877-575-7957 to speak with our team, learn more, or schedule your first session
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When It Might Help to Talk to Someone
These steps can genuinely lighten the load, but anxiety that’s persistent or wearing you down day after day often benefits from more personalized support. Talking things through with a therapist gives you a space to understand what’s fueling your anxiety and build coping tools that fit your specific life, rather than guessing on your own. If you’ve been feeling stuck, it might be worth taking a look at how to find a therapist who can walk through this with you. There’s no need to have it all figured out before reaching out.
Looking for help from a therapist for either individual sessions or couples therapy? Serenium has 150+ therapists at multiple locations in NJ and online and accepts most insurance. View our therapists and call us at 877-575-7957 to speak with our team, learn more, or schedule your first session
Frequently Asked Questions
Why does anxiety make me so tired? Anxiety activates your body’s stress response, which uses real physical and mental energy. Combined with disrupted sleep and the effort of constant worry, this can leave you feeling drained even without doing much physically.
Is fatigue a symptom of an anxiety disorder? Yes. Fatigue is one of the recognized symptoms associated with generalized anxiety, often appearing alongside restlessness, trouble concentrating, and muscle tension.
Can anxiety cause exhaustion even after a full night’s sleep? It can. Anxiety affects sleep quality, not just sleep duration, so you might log enough hours and still wake up feeling unrested because your sleep wasn’t as restorative as it needed to be.
How long does anxiety fatigue typically last? This varies from person to person. For some, it eases once a stressful period passes. For others, ongoing anxiety means fatigue lingers until the anxiety itself is addressed through lifestyle changes, support, or therapy.
What helps anxiety fatigue quickly? Slow breathing, a short walk, and stepping away from a stressful situation can offer some quick relief. For longer-lasting change, addressing the anxiety at its root, often with support from a therapist, tends to make the biggest difference.
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