It’s no mystery that exposure to nature has some amazing benefits to our general well-being like reducing stress or increasing our energy levels. But the question that naturally arises is how much time do we actually need to be able to reap those benefits. A new study might have an answer to that question. The research found that spending 20 minutes in an urban park can make us happier regardless of whether we use that time to exercise or not. The study suggested that people who visited a park area for 20 to 25 minutes reported a roughly 64 percent increase in their well-being, even if they didn’t move a great deal in the park. The findings point to the fact that as the world’s cities keep on growing, green space must be a key consideration in urban planning for the sake of both the city’s health and that of its people.