AGING Aging, in biology, is a combination of changes in an organism that appear to occur inevitably and irreversibly with the passage of time, eventually resulting in death. Such changes vary considerably in time and severity of occurrence among different species and from one individual organism to the next. Among humans they include a decrease in tissue flexibility, loss of some nerve cells, hardening of the blood vessels, and general decrease in body tone. Biologists …showed first 75 words of 597 total…

…showed last 75 words of 597 total…aging process more fully will require the combined efforts of psychosocial and biomedical scientists. New research methods being brought to bear on the subject include clinical trials in the biomedical research and the statistical analysis of data from the long-term studies by social scientists. Some researchers are also asking longer-range questions about how social change, changes in smoking, exercise, dietary habits; economic fluctuations; political shifts; medical advances; and new technologies, can affect the aging process.