How does cycling contribute to improving mental health and well-being, and what specific factors of the cycling experience - such as the physical exertion, the solitude, or the connection with nature - play the biggest role in this positive impact? Does the fact that most people tend to listen to music or podcasts while cycling somehow enhance or detract from this benefit, or is it simply a neutral factor? Are there any studies that compare the mental health benefits of cycling in different environments, such as urban vs. rural areas, or with varying levels of social interaction, like group rides vs. solo rides? Should cyclists who prioritize mental health benefits focus on incorporating certain types of rides or routes into their routine, such as recovery rides or tech trails, and are there any tips for maximizing the positive impact of cycling on mental well-being?