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Physiology and Pathology of Aging

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Geriatric Psychiatry

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Abstract

In older adults, acute and chronic illness, including late-onset psychiatric disorders, occurs within the context of age-related alterations in physiology at the organ system, cellular, and genomic levels. Some of these changes reflect the ineluctable response to normal aging, but their onset and severity often are influenced by patient behaviors (e.g., smoking, lifestyle) and the environment (e.g., culturally influenced diets, environmental toxins). These age-related changes affect virtually all organ systems and increase the vulnerability of older adults to functional decline, disability, and organ-system dysfunction, thereby contributing to the burden of multiple comorbidities. This chapter discusses general principles of aging and age-related changes in the function of individual organ systems that should be considered by the psychiatrist in the diagnosis and management of the older psychiatric patient.

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Notes

  1. 1.

    The authors used a standardized definition for psychiatric disorders but did not disclose the conditions included in the definition.

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Authors and Affiliations

  1. Division of General Medicine, University of California, Davis Medical Center, Sacramento, CA, USA

    Calvin H. Hirsch

  2. Division of Geriatric Psychiatry, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada

    Ana Hategan

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  1. Calvin H. Hirsch
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  2. Ana Hategan
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Correspondence to Calvin H. Hirsch .

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Editors and Affiliations

  1. Division of Geriatric Psychiatry, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada

    Ana Hategan

  2. Department of Psychiatry and Behavioral Sciences, University of California, Davis Medical Center, Sacramento, CA, USA

    James A. Bourgeois

  3. Division of General Medicine, University of California, Davis Medical Center, Sacramento, CA, USA

    Calvin H. Hirsch

  4. Department of Psychiatry and Behavioral Sciences, University of California, Davis Medical Center, Sacramento, CA, USA

    Caroline Giroux

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Hirsch, C.H., Hategan, A. (2024). Physiology and Pathology of Aging. In: Hategan, A., Bourgeois, J.A., Hirsch, C.H., Giroux, C. (eds) Geriatric Psychiatry. Springer, Cham. https://doi.org/10.1007/978-3-031-47802-4_1

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  • DOI: https://doi.org/10.1007/978-3-031-47802-4_1

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  • Online ISBN: 978-3-031-47802-4

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