1.Thesocietyandgovernmentpaymuchattentiontotheoldpeople'slivingandhealth.Itisadvocatedthatitistheresposibilityandalsoatraditionalvirtueforustotakecareofoldpeople.
2.Themorereasonabledietstructure.Toeatnowisconsideredscitifically.
3.Theimprovementoflifeconditionsandthemedicalcareisperfected.
4.Technologyofmedicineisdevelopedandpatientsarehavingmoreopportunitytobecured.
5.Ithinkthepeacefulenvironmentisanimportantreason.