blood disorders
Formation of Blood Cells
Effects of aging on the blood
Aging has some effect on bone marrow and blood cells, resulting in less cell-producing bone marrow. While this decrease generally does not cause problems, problems may arise when the body experiences an increased demand for blood cells: the bone marrow of an older adult may be less able to meet those increased demands. Overview of Anemia is the most common result. (See also Effects of Aging on the Immune System .) 