Most Americans know that fast food isnt good for them. It is high in calories, fat, salt, and sugar. Yet fast-food restaurants are part of American life. After World War II, higher salaries and productivity, together with technological developments and increased consumerism, made the fast-food restaurant popular. It represented a modern lifestyle, and is still a popular place for teenagers to get together with friends. The food is cheap, and many say they love the taste. The advertising is often aimed at children, with offers of entertainment and free gifts. Another factor in fast-food sales not only in the US, but all over the world is our increasingly busy lifestyles. In the past, families ate a home-cooked meal together at dinner time. These days, meals can be eaten at any hour of the day, and people rely on easy, instant food not always nutritious that is available 24/7. America invented the Television dinner, and it is something most people around the world now enjoy.