In today's lecture, we'll discuss the impact of urban green spaces on mental health. Recent studies show that access to parks and gardens can significantly reduce stress levels. However, the key factor isn't just the presence of green areas, but their quality and accessibility. For instance, a study in Melbourne found that people living within 300 meters of a well-maintained park reported lower anxiety. Interestingly, the effect was stronger for older adults than for younger people. Also, community gardens, where residents actively participate, had a greater benefit than passive viewing of greenery. So, urban planners should prioritize creating interactive green spaces, not just decorative ones.