"Low back pain" has become the biggest problem for many office workers. The survey found that the main causes of low back pain are sedentary and bow. How to alleviate this phenomenon from an emotional and interactive perspective. Propose a solution through the emotional influence and behavior drive of the people around you, endow the product with emotion and behavior "Xiao Fang", the main switch at the top of Xiao Fang, the system automatically counts down, and the time is fixed (the survey concludes that everyone should avoid sitting for a long time, sitting for 90 minutes or more). The expression will also show pain with the passage of time, until 90 minutes, it becomes a standing state, in order to remind sedentary people to stand up for activities. The user can restart the countdown of Xiao Fang by moving Xiao Fang's legs, and Xiao Fang's expression returns to normal in 5-10 minutes in standing position.