First of all, you have to understand what is' health'? It is said that as long as it is beneficial to people's health, it can be called health preservation. Then, there are many health tourism projects. One of the projects that I organized the elderly to spend 15 days in suburban farmhouses was to go to Hainan to soak in hot springs and spend 20 days in Changshou Village, Guangxi. If you have any questions, you can ask them and I will answer them.