Public policies play a crucial role in promoting active lifestyles by creating environments that support physical activity participation. Policies can include the development of parks, walking and biking trails, and accessible recreational facilities. They can also encourage safe urban planning that prioritizes pedestrian-friendly spaces. Additionally, schools can implement physical education requirements and community initiatives can foster active transportation programs. By shaping the infrastructure and policies, governments can substantially impact public health and encourage populations to adopt more active and healthy lifestyles.