The short answer: physical activity reduces anxiety symptoms by a medium amount in trials, and a single bout of exercise gives a small, temporary reduction in anxiety in the moment. That is worth knowing. But the evidence is about exercise in general rather than walking specifically, much of it is low quality, and several things commonly said about walking and anxiety, including how fast it works and how long it lasts, aren't in the research.
What the reviews found
A 2023 umbrella review in the British Journal of Sports Medicine (Singh and colleagues) combined 97 systematic reviews covering 1,039 trials and 128,119 participants, including healthy adults, people with mental health conditions, and people with chronic illness. Compared with usual care, physical activity had medium effects on depression (median effect size -0.43), anxiety (-0.42) and psychological distress (-0.60). A caution from the authors' own assessment: 77 of the 97 reviews had a critically low quality rating.
A review of recent literature (Progress in Cardiovascular Diseases, 2023) summarises two more specific pieces of work. A meta-analysis of six trials with 262 adults who had anxiety or stress-related disorders found that exercise reduced anxiety symptoms more than control conditions, with a moderate effect size. And a meta-analysis of 36 randomised trials of single exercise sessions (Ensari and colleagues, 2015) found a small but statistically significant reduction in state anxiety, meaning how anxious you feel at that moment.
What isn't supported
We couldn't find evidence for several specific claims that appeared on an earlier version of this page. One is that a 10-minute walk noticeably reduces anxiety and that the calm lasts up to two hours. The acute-exercise research points to a small, temporary effect, and we found nothing that supports a figure like two hours. Another is that walking "burns off" cortisol and adrenaline or switches on the parasympathetic nervous system. Those are plausible-sounding explanations, but we haven't found human trials that show walking works for anxiety through them, so we've removed them. The same goes for "26% lower depression risk" and "60% of walkers report reduced stress," which we couldn't trace to a source.
Does where you walk matter?
One study is relevant. In a 2015 Stanford experiment (Bratman and colleagues), 38 healthy young adults were randomly assigned to a 90-minute walk in a natural setting or beside a busy road. The nature walkers reported less rumination afterwards and showed lower blood flow in a brain region linked to it, while the road walkers didn't. The participants did not have anxiety disorders, the walk was long, and it was a single session. We'd call it a reason to choose a green route when you can, not a finding about treating anxiety. Walking and mental health covers it in more detail.
How we'd use this
This part is opinion, not study findings. If a walk takes the edge off when you're keyed up, that is a perfectly good reason to take one, and the research suggests the effect, though small, is real. Some people prefer to start brisk and slow down; others like a gentle pace. Try a few ways and see what works for you. Walking meditation is an option if racing thoughts are the main problem, and walking for beginners has an easy way into a daily habit.
When walking isn't enough
Walking isn't a treatment for an anxiety disorder. If your anxiety is severe, persistent, interferes with daily life, or includes panic attacks, please talk to a doctor or mental health professional, who can discuss treatments with a stronger evidence base. Walking can sit alongside them. If you ever have thoughts of harming yourself, contact your local emergency number or crisis line.
Sources
- Singh B, Olds T, Curtis R, et al. Effectiveness of physical activity interventions for improving depression, anxiety and distress: an overview of systematic reviews. British Journal of Sports Medicine. 2023;57(18):1203-1209. PubMed
- Is exercise a viable therapy for anxiety? Systematic review of recent literature and critical analysis. Progress in Cardiovascular Diseases. 2023 (summarising Stubbs et al., 2017, and Ensari et al., 2015). PMC
- Ensari I, Greenlee TA, Motl RW, Petruzzello SJ. Meta-analysis of acute exercise effects on state anxiety: an update of randomized controlled trials over the past 25 years. Depression and Anxiety. 2015;32(8):624-634. illinois.edu
- Bratman GN, Hamilton JP, Hahn KS, Daily GC, Gross JJ. Nature experience reduces rumination and subgenual prefrontal cortex activation. PNAS. 2015;112(28):8567-8572. doi
Correction note: an earlier version of this page said 10 minutes of walking noticeably reduces anxiety for up to two hours, that walking burns off cortisol and adrenaline and activates the parasympathetic nervous system, that it works faster than most other anxiety interventions, and gave figures of 26% lower depression risk and 60% of walkers reporting reduced stress. We could not support those, so they were removed. We checked the figures above against published abstracts and summaries on October 2, 2026, and the Stubbs meta-analysis through a 2023 review's summary. This article is for informational purposes and does not replace professional mental health care. This is general information, not medical advice.