Nowadays we are used to eat anything that is quick and easy to cook, without mattering if it is healthy or not. People need to be aware of what they war, if not they may become obesse. Doing sports is the best option to maintain healthy, also being aware that being fitness is recommended.
To start with we can promote doing sports and a healthy lifestyle through the media. Believe it or not the advertising can reach a wide range of population. Despite that is a great idea, it is very expensive to have a few seconds en the TV, or radio to show all the information needed to make people aware of the importance of what they eat and of doing exercise.
Moreover, we can also educate children from a young age about the importance of a healthy lifestyle. If schools can teach little kids to be aware of what they eat and exercising often, they will take it as a routing and they could implement it through out their lives. Eventually it is one of the best options it takes time to educate children to apply it.
To conclude, both ideas are good to change people's lifestyles. In the first option, the media could reach along the population, but they could take or not the advice. On the other hand, the second option is more effective because you are teaching kids to make use to doing sports. Both solutions are necessary to explain why it is important for people to be aware of what they eat and the exercise they do.