The public health system focuses on prevention through population-based health promotion-those public services and interventions which protect entire populations from illness, disease, and injury-and protection. Social media is increasingly used for public health and health promotion as well. The use of graphic videos is controversial. Some are offended, others upset, children may be especially so. The biggest question is-do they work? Watch this video: the effectiveness of public education initiatives. Include the following aspects in the journal: Ø  Identify healthful initiatives in your area Ø  Do you feel that they are beneficial? explain why. Ø  Describe a social media site that promotes a specific health activity? Ø  Reflect on your feelings about graphic public health warnings