 In your research, what factors have you identified that affect how often people visit parks and engage in physical activity there? A lot of it is access. And so in our study, we noted there's a major difference between the states in access to parks and green space, with Illinois being the highest. Almost everybody has quick, easy access to a park, and Mississippi being the lowest, where there's really a lack of public green space. And so that's one of the biggest things, is can I get to that park easy? You don't have to get in the car and drive for a half an hour.