promote Brands, Products and Services. Usually to encourage engagement, loyalty and product education. These usually involve social leaderboards and rewards that are advertised via social media platforms like Facebook's Top 10 games. Gamification also has been used as a tool for customer engagement, and for encouraging desirable website usage behaviour. Additionally, gamification is applicable to increasing engagement on sites built on social network services. For example, in August, 2010, the website builder DevHub announced an increase in the number of users who completed their online tasks from 10% to 80% after adding gamification elements. On the programming question-and-answer site Stack Overflow users receive points and/or badges for performing a variety of actions, including spreading links to questions and answers via Facebook and Twitter. A large number of different badges are available, and when a user's reputation points exceed various thresholds, the user gains additional privileges, eventually including moderator privileges. Inspiration Gamification can be used for ideation (structured brainstorming to produce new ideas). A study at MIT Sloan found that ideation games helped participants generate more and better ideas, and compared it to gauging the influence of academic papers by the numbers of citations received in subsequent research. Health Applications like Fitocracy and QUENTIQ (Dacadoo) use gamification to encourage their users to exercise more effectively and improve their overall health. Users are awarded varying numbers of points for activities they perform in their workouts, and gain levels based on points collected. Users can also complete quests (sets of related activities) and gain achievement badges for fitness milestones. Health Month adds aspects of social gaming by allowing successful users to restore points to users who have failed to meet certain goals. Public health researchers have studied the use of gamification in self-management of chronic diseases and common mental disorders, STD prevention, and infection prevention and control. In a review of health apps in the 2014 Apple App Store, more than 100 apps showed a positive correlation between gamification elements used and high user ratings. MyFitnessPal was named as the app that used the most gamification elements. Reviewers of the popular location-based game Pokémon Go praised the game for promoting physical exercise. Terri Schwartz (IGN) said it was "secretly the best exercise app out there," and that it changed her daily walking routine. Patrick Allen (Lifehacker) wrote an article with tips about how to work out using Pokémon Go. Julia Belluz (Vox) said