In today's lecture, we'll discuss the impact of urban green spaces on mental health. A recent study from the University of Melbourne followed 500 adults over five years. Participants who lived within 500 meters of a park reported 30% lower stress levels. Interestingly, the size of the green space mattered less than its accessibility. Even small community gardens had positive effects, especially for elderly residents. However, the study noted that simply having trees on streets did not produce the same benefits as dedicated green areas. So, urban planners should prioritize creating accessible pockets of nature rather than just planting roadside vegetation.