When human body is prosperous,the organism is placed in the state of needing mutually and harmonizing to unify,but nerve forget the unbalance of needing in the process.If things are not in balance,it will be out of order.If yin and yang inside human body are not in balance,there will be obvious symtom, we must discover、regulate these syptoms in time.So we invent Yikang Nutrition Supplyment.If we feel unwell but we do not prevent and cure it,at last we will get disease.Certainly people will be old sonner or later, but the decrepitude isn't the disease, we must try our best to be healthy.Make people long-live、healthy and peaceful.