In today's lecture, we'll discuss the impact of urban green spaces on mental health. A recent study followed 1,000 adults over five years. Participants who visited parks at least once a week reported 22% lower stress levels compared to those who didn't. Interestingly, the size of the park mattered less than the frequency of visits. Even small community gardens showed benefits, but only if people spent at least 30 minutes there. The study also found that activities like walking or reading in green areas were more effective than vigorous exercise. So, for city planners, the key is not just creating large parks, but ensuring accessible, small green spots within walking distance of homes.