Today's lecture focuses on the impact of urban green spaces on mental health. Recent studies have shown that access to parks and gardens can significantly reduce stress levels, especially in densely populated cities. However, the benefits are not universal. For instance, a study in Tokyo found that the presence of trees was more important than the size of the green area. Meanwhile, research in London highlighted that the quality of maintenance, such as clean pathways and safe lighting, played a crucial role in encouraging regular visits. Interestingly, the frequency of visits, rather than the duration, was the strongest predictor of improved well-being. So, city planners should prioritize small, well-kept green pockets near residential areas over large, distant parks.