Social norms, laws and policies as well as physical and information environments play an important role in shaping health. It is important to consider what types of communication channels are best suited to achieve different campaign objectives. The media is the least interactive method of communication and the one that is best suited for broadcasting messages that are clear and simple. Media campaigns can raise public awareness and shift people's beliefs about an issue. They can reach large numbers of people while allowing for more involvement and participation.
Events also serve as cues to action.
These discussions may include sharing information, advice, skills or support. In addition, events can provide incentives or cues to motivate people to action. The media can be used to increase gatekeeper knowledge and enroll the support of these people to pursue changes about a health topic. Specialized media such as a workplace newsletter can be used to give information to members of an organization. This communication can be used to influence the types of activities organizations endorse and support, as well as the variety of resources provided for members, policies regarding health behaviour and availability of facilities that contribute to healthful lifestyles.