Globally, around half (55%) of the population live in fast‐paced urban settings where many people find it challenging to manage their stress and respond to crises with a positive mindset. This resulted in prolonged distress where anxiety and fatigue caused physical and mental health concerns. Nature walks involving immersive exposure in the forest, and green spaces have been posited to offer physiological and psychological benefits. Therefore, in this systematic review, we evaluated the effects of forest bathing on psychological and physiological outcomes. We searched four English and five non‐English databases (Chinese and Korean) for peer‐reviewed studies published between January 2000 and March 2021. This review adhered to the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta‐analysis Statement 2020. The primary outcomes explored in this review were mainly psychological, including anxiety, depression, mood and quality of life. The secondary outcomes were physiological outcomes such as blood pressure and heart rate. We conducted a meta‐analysis on each outcome using the random‐effects model. Heterogeneity was assessed by the I2 statistic. Thirty‐six articles (21 in English, 3 in Chinese and 12 in Korean) with 3554 participants were included in this review. Our meta‐analysis suggested that forest bathing can significantly reduce symptoms of depression and anxiety. However, we did not observe as many benefits in physiological outcomes. Against the background of the negative effects of urbanization on mental well‐being, this review highlighted the potential therapeutic role of forests in the contemporary world, lending further evidence‐based support for forest conservation.

Despite the increased awareness of mental health‐related issues, people experiencing mental health conditions have continued to face stigmatization worldwide. The literature on help‐seeking behaviours has frequently highlighted the development of self‐stigma because of public stigma and emphasized the need to address public stigmatization faced by them. Given the increasing acceptance of digital services in recent years, this systematic review aimed to examine the effects of online and face‐to‐face anti‐stigma interventions in reducing public stigma towards people experiencing mental health conditions. A search was conducted on the Cochrane Library, CINAHL, PubMed, Embase, PsycInfo, and ProQuest from inception of the databases to October 2020. Studies were included in this review if they have explored: (i) public stigmatization towards people of all ages with different types of mental health conditions; (ii) online interventions; and (iii) face‐to‐face interventions. Nine studies were included in this review, of which only five were included in the meta‐analysis as the remaining four had incomplete data. The meta‐analysis included an aggregate of 1203 participants while the four excluded studies included 713 participants. Results revealed that online interventions performed favourably with small effect sizes in comparison to face‐to‐face, wait‐list control, and no‐intervention groups. Results from the studies excluded from the meta‐analysis also found a significant reduction of public stigmatization with online interventions. Such findings provide insightful evidence for the effectiveness of online interventions in reducing public stigmatization. Hence, mental health organizations and groups can consider adopting online interventions suitable for their target audience and type of mental health conditions.