According to Phoenix's inquiry. Bama Bai Mo Cave is a limestone cave located in Bama County, Guangxi. Because it is rich in negative oxygen ions and geomagnetic field, it is considered as a holy place for magnetic therapy, attracting many people suffering from various diseases to draw water, sit still and recuperate here every year. However, these people's belief in the effect of magnetic therapy in Bai Mo Cave often lacks scientific basis and proof, and has not been recognized and supervised by authoritative medical institutions. Therefore, Bai Mo Cave can't treat anxiety and insomnia, which needs research and evidence to support.