A Systematic Review and Meta-Analysis on the Effect of Nature Exposure Dose on Adults with Mental Illness.

ABSTRACT: Time spent in nature leads to significant physical and mental benefits, but research is mixed on how much time in nature is necessary to affect change in adults' mental health. This meta-analysis aimed to answer the question: what effect does length and interval of nature dosage have on adults with mental illness? The authors defined nature exposure as an experience in nature lasting at least 10 minutes and taking place in an actual natural setting. Because some studies indicated single experiences of exposure to nature (one-time) while others utilized multiple exposures to nature (interval), these studies were separated to determine differences between one-time versus interval exposure to nature. Following Cochrane Handbook for Systematic Reviews of Interventions and

SUBMITTER: Bettmann JE 

PROVIDER: S-EPMC11851813 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature