Comprehensive functional area. According to the inquiry of Yang Kang base of Rendeshan National Rainforest, Yang Kang base is a comprehensive functional area integrating sports, fitness and leisure communication, which provides medical care, rehabilitation, healthy old-age care and other services. Yang Kang Base provides a relaxed holiday and living environment for consumers through the creation of natural ecological and humanistic environment atmosphere, so that the physical and mental state can reach a preliminary state of balance and relaxation.