Walking has antidepressant effects that are similar in magnitude to those of selective serotonin reuptake inhibitors in people diagnosed with mild to moderate depression.
See the scientific wording
Walking produces antidepressant effects comparable to those of selective serotonin reuptake inhibitors in individuals with mild to moderate depression.
Very strong evidence
Randomized trials2 moderate-quality studies support this claim, so treat these as early signals rather than settled science.
What the research says
2 studies reviewedSupporting (1)
Randomized Controlled TrialHuman2023
People who walked either 150 minutes a week at a slow pace or 75 minutes at a fast pace for 12 weeks felt much less depressed — and both groups improved just as much. This suggests walking can be as helpful for depression as some medicines, though the study didn’t directly compare the two.
Contradicting (1)
Systematic Review With Meta-AnalysisMeta-analysis2025
The study looked at combining walking with antidepressants, not walking alone versus antidepressants alone. It didn't compare walking and antidepressants head-to-head, so we can't say they're equally effective.
Quality-weighted scoring: we follow the GRADE framework — each study is rated High, Moderate, Low, or Very Low based on study design, methodology rigor, and risk of bias. A single high-quality RCT can outweigh several weaker observational studies.
Scores reflect study quality, not just count.
Walking increases blood flow to the brain, which triggers the production of a protein called BDNF in the hippocampus. This protein helps brain cells form new connections and grow new branches, repairing damage caused by depression. As these brain circuits recover, they regain control over mood, reducing feelings of sadness and lack of interest.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting, 1 contradicting studies
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