After taking Yangyin Pill for a period of time, firstly, the blood circulation has been obviously improved, indicating that the vitality has been improved, and it is not easy to get tired, the complexion is rosy, insomnia and forgetfulness have been improved, and the disease resistance has been enhanced. For the elderly with lung deficiency and body cold, it can dispel cold and relieve cough, and it is not easy to catch a cold and cough in autumn and winter. Do you understand my answer? Please feel free to ask questions if you don't understand.