In today's lecture, we'll discuss the impact of urban green spaces on mental health. A recent study conducted in Melbourne followed 1,000 residents over five years. Participants who visited parks at least once a week reported 20% lower stress levels compared to those who rarely went. Interestingly, the size of the park mattered less than the presence of water features, like ponds or fountains. The researchers also noted that social interactions in these spaces, such as chatting with neighbors, amplified the benefits. However, they warned that simply having a balcony garden at home did not produce the same effect, as it lacked the communal aspect.