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Effects of Indoor Plants on Human Functions: A Systematic Review with Meta-Analyses
Ke-Tsung Han1, Li-Wen Ruan1, Li-Shih Liao1
1Department of Landscape Architecture, National Chin-Yi University of Technology, Taichung 411030, Taiwan.
Summary
Indoor plants positively influence human well-being, reducing blood pressure and improving academic performance. This systematic review highlights the benefits of indoor greenery for physiological and cognitive functions.
Area of Science:
- Environmental Psychology
- Human Health
- Cognitive Science
Background:
- Limited systematic reviews and no meta-analyses exist on indoor plants' effects.
- Indoor plants are increasingly recognized for their potential impact on human well-being.
Purpose of the Study:
- To systematically review and meta-analyze the effects of indoor plants on physiological, cognitive, health, and behavioral functions.
- To address the research gap concerning the quantifiable benefits of indoor plants.
Main Methods:
- Systematic review and meta-analysis of studies published in English and Chinese.
- Searched major databases including Web of Science, Scopus, and WANFANG DATA.
- Evaluated 42 records for systematic review and 16 for meta-analysis using a quality appraisal system.
Main Results:
- Indoor plants positively affect physiological relaxation and cognitive enhancement.
- Significant benefits observed in reduced diastolic blood pressure and improved academic achievement.
- Trends indicated positive effects on electroencephalography (EEG) alpha and beta waves, attention, and response time, though not statistically significant.
Conclusions:
- Indoor plants offer significant benefits for human health and cognitive function.
- Integrating indoor plants into urban and building design is crucial for promoting healthy cities and effective functioning.
- Further research is needed, particularly including grey literature, to strengthen meta-analysis findings.
Keywords:
academic achievementdiastolic blood pressuredose–response or exposure–outcome relationshipenhanced cognitionrelaxed physiologyvisible greenness ratevolume percentage of the plantsMore Related Videos
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