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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.