Group 1 - The core idea is that engaging in outdoor activities, particularly walking in fresh environments, can significantly improve energy levels and mental well-being [3][10][25] - Walking is highlighted as a simple and accessible form of exercise that can enhance mitochondrial function, leading to increased energy and reduced fatigue [8][10][12] - Exposure to diverse environments stimulates brain development and cognitive abilities, as supported by various studies on the effects of enriched environments on neural connections [15][16][21] Group 2 - Natural settings, such as areas with trees and water, have been shown to improve mental health and happiness, reducing issues like anxiety and depression [26][27][30] - Research indicates that spending time in nature correlates with better health outcomes, with specific studies showing that just two hours a week in natural settings can enhance well-being [27][28] - The concept of "nature therapy" suggests that even virtual exposure to nature can yield psychological benefits, emphasizing the importance of natural environments for mental rejuvenation [29][30][38] Group 3 - Walking not only aids in relaxation but also boosts creativity and cognitive function, with studies indicating that it can enhance creative thinking and maintain its effects post-activity [46][48] - The physical act of walking increases blood flow and oxygen to the brain, improving overall brain function and synaptic plasticity [50][52] - Engaging in walking can help alleviate mental blocks and promote a sense of exploration and freedom, contributing to a more positive mindset [53][54]