Core Viewpoint - Walking is emphasized as a beneficial exercise for both physical and mental health, particularly for middle-aged individuals, promoting longevity and well-being [5][9][11]. Group 1: Walking for Health - The World Health Organization identifies walking as the best form of exercise, crucial for physical and mental health [9]. - Regular walking strengthens muscles and improves cardiovascular health, making it an ideal exercise for middle-aged individuals facing health issues [9][10]. - Notable figures like Ba Jin and Jiro Ono exemplify the benefits of walking, maintaining their health and vitality well into old age through consistent walking habits [10][11]. Group 2: Walking for Mental Clarity - Walking serves as a method for mental release and clarity, helping individuals to alleviate stress and organize thoughts [11][27]. - Historical figures such as Nietzsche and Hemingway utilized walking as a means to overcome creative blocks and emotional turmoil, leading to significant literary contributions [24][35]. - Engaging in walking can stimulate cognitive function and enhance focus, making it a practical solution for those experiencing mental fatigue [34][40].