“…Evidences showed that anemia in elderly has been strongly linked with severe complications, including impaired physical functioning [ 10 ], decreased functionality [ 11 ], multidimensional loss of function [ 12 ], increased risk of frailty [ 13 – 15 ], depression [ 16 ], cognitive impairment [ 17 ], obstructive sleeping apnea [ 18 ], frequent comorbidity and hospitalization [ 19 – 21 ], and increased risk of death [ 20 , 22 , 23 ]. Despite old age being a major risk factor for anemia which threatens the quality of elderly life and has a substantial social and economic effects, anemia, however, should not be accepted as an inevitable consequence of aging, as it does reflect poor health and increased vulnerability to adverse outcomes in older persons [ 24 , 25 ].…”