Media violence has been taken up as a public policy issue by a number of Western countries. Central to the debate has been the challenge of accommodating what may appear to be opposing principles—the protection of children from unsuitable media content and upholding the right to freedom of expression.
There’s significant evidence that media education can counter unrealistic media representations of men’s and women’s bodies. For example, a 2010 study found that showing the video Evolution (which was created by Dove to show how media images of women are manipulated) significantly reduced negative effects on confidence and body satisfaction of young girls when they looked at pictures of ultra-thin models afterwards.
The video game sector is the fastest growing entertainment industry and second only to music in profitability. Global sales of video game software hit almost $17 billion U.S. in 2011. 
Persons with disabilities might best be described, in the media at least, as an invisible minority: though a large segment of the population has a physical or mental disability they have been almost entirely absent from the mass media until recent years. Moreover, when persons with disabilities appear they almost always do so in stereotyped roles.
Media producers have recognized that they must make efforts to better represent persons with disabilities.
The Internet has revolutionized how young people watch movies: half of Canadian teens say that they download movies without paying for them at least once a week. 
Music is a significant medium in a young person’s life, particularly during the teenage years. While other media may occupy a greater number of hours, it is most often from music that teenagers define their identities and draw cues about how to dress and to behave.
Despite the popularity of the Internet, movies and TV still dominate young people’s media use (though they are increasingly watching both online).  Given this widespread appeal, these media may have an indirect effect by influencing how groups or cultures view body image.
Traditionally, most of the concerns about media and body image have revolved around girls, but more and more, researchers and health professionals are turning their attention to boys as well. A growing body of research indicates that although boys are less likely to talk about their insecurities, they too experience anxiety about their bodies.
Advertising, particularly for fashion and cosmetics, has a powerful effect on how we see ourselves and how we think we should look. Women’s magazines in particular have a tremendous influence on body image, with researchers reporting that teenage girls rely heavily on them for information on beauty and fashion, valuing their advice nearly as highly as that of their peers.