Does Nature Really Help Reduce Negative Emotions?

Key Points:

• A meta-analysis of 33 studies with over 2,100 participants confirms that exposure to nature—real, virtual, or imagined—significantly reduces negative emotions and enhances brain health, as measured by EEG, fMRI, and psychological assessments.
• Nature exposure promotes a balanced psychological state, increasing positive emotions and decreasing negative ones, with benefits observed across outdoor walking, virtual reality environments, and viewing nature images.
• With 90% of the U.S. population projected to live in urban areas by 2050, researchers advocate for integrating "Nature Prescriptions" into urban design and public health strategies to protect and improve collective brain health or "brain capital."
• The study highlights environmental factors as critical in shaping mental health risks and resilience, suggesting that genetics alone cannot explain brain health outcomes.
• Researchers call for expanded neuroimaging studies, including functional connectivity and standardized multimodal data, to better understand nature's neurophysiological impact and develop effective nature-based mental health interventions.