Read the following passage:
In the late 1990s, a group of researchers set out to investigate whether exposure to nature could lead to improved psychological well-being. Their study included a diverse sample of participants who reported varying degrees of mental health challenges. Over several months, the participants were encouraged to spend time outdoors, whether in parks, forests, or gardens. The researchers monitored changes in the participants’ mood, stress levels, and overall mental health through surveys and interviews. The results indicated a significant increase in positive moods and a decrease in feelings of anxiety and depression among those who regularly engaged with green spaces. Further analysis suggested that the time spent in nature also fostered a sense of community among participants, as many reported forming friendships with others who shared similar interests in outdoor activities. The findings concluded that access to green spaces could serve as an effective intervention for improving mental health.