how to deal with sub-health
   with the acceleration of global modernization, people are enjoying a constantly improved material life. at the same time we may gradually find ourselves confronted with the threat of sub-health, a state between health and disease.
   one typical symptom of sub-health is continual fatigue; the victims always feels tired and suspicious of some disease, which, however, the active followers of material life yielded through their tense and hard work.