Large-Scale Meta-Analysis Finds Nature-Based Interventions Reduce Anxiety and Depression Symptoms
A second-order meta-analysis published May 28, 2026, in Nature Human Behaviour examined 116 systematic reviews covering more than 10 million participants. Researchers from Islamic Azad University in Iran reported that nature-based interventions (NBIs) were associated with significant reductions in negative outcomes such as anxiety, depression, heart rate, and negative affect.
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