Stress, Immune Function, and Health

Stress, Immune Function, and Health

Author: Bruce S. Rabin

Publisher: Wiley-Liss

Published: 1999-03-05

Total Pages: 368

ISBN-13:

DOWNLOAD EBOOK

Written by a renowned figure in the field of immunology and compiling a wealth of scientific information, Stress, Immune Function, and Health: The Connection looks at the long-term effects of stress on human health from a psychoneuroimmunological approach. The recent changes in dietary modifications, clinical applications, and evolution in the field of immunology have created the need for a book which addresses the growing awareness of health benefits that can be achieved by buffering the effects of stress on the immune system. Emphasizing the importance of the interaction among the mind, the body, and physical health, this reference includes important developmental procedures that can be used to resist stress on the immune system. By examining components of the immune system, along with the effects of psychological stress and the capacity for hormonal response, author Bruce Rabin demonstrates, in a concise, accessible manner, the ability of an individual's immune system to alter susceptibility to immune-mediated diseases. In addition, the book examines several key issues in this rapidly expanding field, including: * Information and examples that illustrate how distinct areas of the brain that perceive the presence of a stressor are able to communicate with the cells of the immune system * The correlation between stress-related changes in health practices and stressor-induced risks of disease development * The effect on the immune system due to stress from an increased concentration of neuropeptides and hormones * Behaviors and beliefs that can reduce the harmful effects of stress on the immune system by interfering with the stress-responsive areas of the brain * The issue of stress during pregnancy and the early period of development on behaviors and immune functions in children An authoritative guide for all researchers and students in the fields of immunology, neuroscience, and psychology, Stress, Immune Function, and Health: The Connection is also an essential reference for physicians and nurses concerned with stress and immune-related diseases.


Book Synopsis Stress, Immune Function, and Health by : Bruce S. Rabin

Download or read book Stress, Immune Function, and Health written by Bruce S. Rabin and published by Wiley-Liss. This book was released on 1999-03-05 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a renowned figure in the field of immunology and compiling a wealth of scientific information, Stress, Immune Function, and Health: The Connection looks at the long-term effects of stress on human health from a psychoneuroimmunological approach. The recent changes in dietary modifications, clinical applications, and evolution in the field of immunology have created the need for a book which addresses the growing awareness of health benefits that can be achieved by buffering the effects of stress on the immune system. Emphasizing the importance of the interaction among the mind, the body, and physical health, this reference includes important developmental procedures that can be used to resist stress on the immune system. By examining components of the immune system, along with the effects of psychological stress and the capacity for hormonal response, author Bruce Rabin demonstrates, in a concise, accessible manner, the ability of an individual's immune system to alter susceptibility to immune-mediated diseases. In addition, the book examines several key issues in this rapidly expanding field, including: * Information and examples that illustrate how distinct areas of the brain that perceive the presence of a stressor are able to communicate with the cells of the immune system * The correlation between stress-related changes in health practices and stressor-induced risks of disease development * The effect on the immune system due to stress from an increased concentration of neuropeptides and hormones * Behaviors and beliefs that can reduce the harmful effects of stress on the immune system by interfering with the stress-responsive areas of the brain * The issue of stress during pregnancy and the early period of development on behaviors and immune functions in children An authoritative guide for all researchers and students in the fields of immunology, neuroscience, and psychology, Stress, Immune Function, and Health: The Connection is also an essential reference for physicians and nurses concerned with stress and immune-related diseases.


Stress Challenges and Immunity in Space

Stress Challenges and Immunity in Space

Author: Alexander Choukèr

Publisher: Springer Nature

Published: 2019-11-27

Total Pages: 756

ISBN-13: 3030169960

DOWNLOAD EBOOK

This book explains how stress – either psychological or physical – can activate and/or paralyse human innate or adaptive immunity. Adequate immunity is crucial for maintaining health, both on Earth and in space. During space flight, human physiology is specifically challenged by complex environmental stressors, which are most pronounced during lunar or interplanetary missions. Adopting an interdisciplinary approach, the book identifies the impact of these stressors – the space exposome – on immunity as a result of (dys-)functions of specific cells, organs and organ networks. These conditions (e.g. gravitation changes, radiation, isolation/confinement) affect immunity, but at the same time provide insights that may help to prevent, diagnose and address immune-related health alterations. Written by experts from academia, space agencies and industry, the book is a valuable resource for professionals, researchers and students in the field of medicine, biology and technology. The chapters “The Impact of Everyday Stressors on the Immune System and Health”, “Stress and Radiation Responsiveness” and “Assessment of Radiosensitivity and Biomonitoring of Exposure to Space adiation” are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.


Book Synopsis Stress Challenges and Immunity in Space by : Alexander Choukèr

Download or read book Stress Challenges and Immunity in Space written by Alexander Choukèr and published by Springer Nature. This book was released on 2019-11-27 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains how stress – either psychological or physical – can activate and/or paralyse human innate or adaptive immunity. Adequate immunity is crucial for maintaining health, both on Earth and in space. During space flight, human physiology is specifically challenged by complex environmental stressors, which are most pronounced during lunar or interplanetary missions. Adopting an interdisciplinary approach, the book identifies the impact of these stressors – the space exposome – on immunity as a result of (dys-)functions of specific cells, organs and organ networks. These conditions (e.g. gravitation changes, radiation, isolation/confinement) affect immunity, but at the same time provide insights that may help to prevent, diagnose and address immune-related health alterations. Written by experts from academia, space agencies and industry, the book is a valuable resource for professionals, researchers and students in the field of medicine, biology and technology. The chapters “The Impact of Everyday Stressors on the Immune System and Health”, “Stress and Radiation Responsiveness” and “Assessment of Radiosensitivity and Biomonitoring of Exposure to Space adiation” are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.


Handbook of Human Stress and Immunity

Handbook of Human Stress and Immunity

Author: Ronald Glaser

Publisher: Academic Press

Published: 2014-06-28

Total Pages: 414

ISBN-13: 1483295125

DOWNLOAD EBOOK

In 1964, George Solomon coined the term psychoneuroimmunology. In the intervening 30 years, this term has emerged into a dynamic field of study which investigates the unique interactions between the nervous, endocrine, and immune systems. The Handbook of Human Stress and Immunity is a comprehensive reference for this dynamic new field. Focusing on how stressors impact the central nervous system and the resulting changes in immune responses, the Handbook is the first to describehow stress specifically affects human immune systems. It discusses how stress generally makes people more susceptible to infection, how personal support systems can counteract the physiological effects of stress, and how stress, or lack of stress, affects the aging process. Chapters are authored by the leading names in the field and cover such diseases as autoimmune disease, viral pathogenesis, herpes, HIV, and AIDS.


Book Synopsis Handbook of Human Stress and Immunity by : Ronald Glaser

Download or read book Handbook of Human Stress and Immunity written by Ronald Glaser and published by Academic Press. This book was released on 2014-06-28 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1964, George Solomon coined the term psychoneuroimmunology. In the intervening 30 years, this term has emerged into a dynamic field of study which investigates the unique interactions between the nervous, endocrine, and immune systems. The Handbook of Human Stress and Immunity is a comprehensive reference for this dynamic new field. Focusing on how stressors impact the central nervous system and the resulting changes in immune responses, the Handbook is the first to describehow stress specifically affects human immune systems. It discusses how stress generally makes people more susceptible to infection, how personal support systems can counteract the physiological effects of stress, and how stress, or lack of stress, affects the aging process. Chapters are authored by the leading names in the field and cover such diseases as autoimmune disease, viral pathogenesis, herpes, HIV, and AIDS.


Military Strategies for Sustainment of Nutrition and Immune Function in the Field

Military Strategies for Sustainment of Nutrition and Immune Function in the Field

Author: Institute of Medicine

Publisher: National Academies Press

Published: 1999-05-13

Total Pages: 722

ISBN-13: 0309173183

DOWNLOAD EBOOK

Every aspect of immune function and host defense is dependent upon a proper supply and balance of nutrients. Severe malnutrition can cause significant alteration in immune response, but even subclinical deficits may be associated with an impaired immune response, and an increased risk of infection. Infectious diseases have accounted for more off-duty days during major wars than combat wounds or nonbattle injuries. Combined stressors may reduce the normal ability of soldiers to resist pathogens, increase their susceptibility to biological warfare agents, and reduce the effectiveness of vaccines intended to protect them. There is also a concern with the inappropriate use of dietary supplements. This book, one of a series, examines the impact of various types of stressors and the role of specific dietary nutrients in maintaining immune function of military personnel in the field. It reviews the impact of compromised nutrition status on immune function; the interaction of health, exercise, and stress (both physical and psychological) in immune function; and the role of nutritional supplements and newer biotechnology methods reported to enhance immune function. The first part of the book contains the committee's workshop summary and evaluation of ongoing research by Army scientists on immune status in special forces troops, responses to the Army's questions, conclusions, and recommendations. The rest of the book contains papers contributed by workshop speakers, grouped under such broad topics as an introduction to what is known about immune function, the assessment of immune function, the effect of nutrition, and the relation between the many and varied stresses encountered by military personnel and their effect on health.


Book Synopsis Military Strategies for Sustainment of Nutrition and Immune Function in the Field by : Institute of Medicine

Download or read book Military Strategies for Sustainment of Nutrition and Immune Function in the Field written by Institute of Medicine and published by National Academies Press. This book was released on 1999-05-13 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every aspect of immune function and host defense is dependent upon a proper supply and balance of nutrients. Severe malnutrition can cause significant alteration in immune response, but even subclinical deficits may be associated with an impaired immune response, and an increased risk of infection. Infectious diseases have accounted for more off-duty days during major wars than combat wounds or nonbattle injuries. Combined stressors may reduce the normal ability of soldiers to resist pathogens, increase their susceptibility to biological warfare agents, and reduce the effectiveness of vaccines intended to protect them. There is also a concern with the inappropriate use of dietary supplements. This book, one of a series, examines the impact of various types of stressors and the role of specific dietary nutrients in maintaining immune function of military personnel in the field. It reviews the impact of compromised nutrition status on immune function; the interaction of health, exercise, and stress (both physical and psychological) in immune function; and the role of nutritional supplements and newer biotechnology methods reported to enhance immune function. The first part of the book contains the committee's workshop summary and evaluation of ongoing research by Army scientists on immune status in special forces troops, responses to the Army's questions, conclusions, and recommendations. The rest of the book contains papers contributed by workshop speakers, grouped under such broad topics as an introduction to what is known about immune function, the assessment of immune function, the effect of nutrition, and the relation between the many and varied stresses encountered by military personnel and their effect on health.


Stress and Immunity

Stress and Immunity

Author: Inna B. Mertsalova

Publisher: FriesenPress

Published: 2017-05-02

Total Pages: 202

ISBN-13: 1525501860

DOWNLOAD EBOOK

More Than a Book About Stress – A Self-Help Tool That Gathers All You Need to Know to Stay Healthy In recent years, we have gained increasing knowledge of the roles stress and stress hormones play in our health. It is amazing how the presentation of a stressor—whether in one event or a series of events—might involve us in appraising the environmental challenge and lead us to the “fight-or-flight” response on a physiological level. The idea that stress has only harmful effects does not draw a full picture of its role in our health and well-being. It is scientifically proven that stress and stress hormones not only have a negative impact on our bodies, but they also have potentially beneficial properties, aimed at mobilizing our immune system for fighting immunologic confrontations. How does this work? In Stress and Immunity, Dr. Inna B. Mertsalova illustrates how our immune system functions under exposure to stress. Understanding these processes can help us cope with stress and stay healthy. The book also includes a test to check how you cope with stress and the information about sleep habits, physical activities, and nutrition that are necessary for reducing your stress level. This book is a valuable empirically proven source of information about the bi-directional effects of stress on our immune system. This book is written for everyone who wants to understand how stress modifies our body causing illness. Also, this volume has a great potential as a supplemental reading material for graduate students in the broad range of medical education.


Book Synopsis Stress and Immunity by : Inna B. Mertsalova

Download or read book Stress and Immunity written by Inna B. Mertsalova and published by FriesenPress. This book was released on 2017-05-02 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: More Than a Book About Stress – A Self-Help Tool That Gathers All You Need to Know to Stay Healthy In recent years, we have gained increasing knowledge of the roles stress and stress hormones play in our health. It is amazing how the presentation of a stressor—whether in one event or a series of events—might involve us in appraising the environmental challenge and lead us to the “fight-or-flight” response on a physiological level. The idea that stress has only harmful effects does not draw a full picture of its role in our health and well-being. It is scientifically proven that stress and stress hormones not only have a negative impact on our bodies, but they also have potentially beneficial properties, aimed at mobilizing our immune system for fighting immunologic confrontations. How does this work? In Stress and Immunity, Dr. Inna B. Mertsalova illustrates how our immune system functions under exposure to stress. Understanding these processes can help us cope with stress and stay healthy. The book also includes a test to check how you cope with stress and the information about sleep habits, physical activities, and nutrition that are necessary for reducing your stress level. This book is a valuable empirically proven source of information about the bi-directional effects of stress on our immune system. This book is written for everyone who wants to understand how stress modifies our body causing illness. Also, this volume has a great potential as a supplemental reading material for graduate students in the broad range of medical education.


Environmental Influences on the Immune System

Environmental Influences on the Immune System

Author: Charlotte Esser

Publisher: Springer

Published: 2016-02-04

Total Pages: 389

ISBN-13: 3709118905

DOWNLOAD EBOOK

This book brings together articles on the overarching theme of how the environment shapes the immune system. The immune system is commonly assumed to respond to harmful pathogens such as bacteria and viruses. However, harmless bacteria, chemicals, stress, normal food and other factors can also trigger, shape or interfere with the immune system, often producing adverse effects. Yet, it is also becoming increasingly accepted that some of these interactions are physiological and necessary for a healthy immune system. Examples of negative effects include the immunosuppressive effects of UV irradiation, or the immunotoxic effects of man-made chemicals such as polycyclic aromatic hydrocarbons. Autoimmunity or allergies can be the adverse consequences of interaction between the immune system and chemical compounds such as drugs. Positive effects can come from natural exposure levels to bacteria, healthy life-style or the diet. There is a great need to understand how communication between the environment and the immune system works. This book addresses this need. It covers environmental factors (such as bacteria, sun exposure), human factors (such as age, exercise or stress), and important man-made factors (such as air pollution). A chapter on human rights complements the scientific chapters. The book is intended for immunologists, toxicologists and researchers who want to know how the immune system works and is triggered, as well as for medical doctors in environmental medicine and the general public interested in immunology.


Book Synopsis Environmental Influences on the Immune System by : Charlotte Esser

Download or read book Environmental Influences on the Immune System written by Charlotte Esser and published by Springer. This book was released on 2016-02-04 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together articles on the overarching theme of how the environment shapes the immune system. The immune system is commonly assumed to respond to harmful pathogens such as bacteria and viruses. However, harmless bacteria, chemicals, stress, normal food and other factors can also trigger, shape or interfere with the immune system, often producing adverse effects. Yet, it is also becoming increasingly accepted that some of these interactions are physiological and necessary for a healthy immune system. Examples of negative effects include the immunosuppressive effects of UV irradiation, or the immunotoxic effects of man-made chemicals such as polycyclic aromatic hydrocarbons. Autoimmunity or allergies can be the adverse consequences of interaction between the immune system and chemical compounds such as drugs. Positive effects can come from natural exposure levels to bacteria, healthy life-style or the diet. There is a great need to understand how communication between the environment and the immune system works. This book addresses this need. It covers environmental factors (such as bacteria, sun exposure), human factors (such as age, exercise or stress), and important man-made factors (such as air pollution). A chapter on human rights complements the scientific chapters. The book is intended for immunologists, toxicologists and researchers who want to know how the immune system works and is triggered, as well as for medical doctors in environmental medicine and the general public interested in immunology.


The Immune System and Mental Health

The Immune System and Mental Health

Author: Hymie Anisman

Publisher: Academic Press

Published: 2018-07-19

Total Pages: 700

ISBN-13: 0128113529

DOWNLOAD EBOOK

The Immune System and Mental Health fully investigates how immune-related cellular, molecular and anatomical changes impact mental functioning. The book combines human and animal studies to reveal immunological changes related to mental-health problems. In addition, users will find comprehensive information on new research related to the microbial composition of the gut, aka, the microbiome, and how it influences brain function and mental health. Common comorbidities with mental illness and their inherent immunological or inflammatory components are also covered. Written by leaders in the field, the book synthesizes basic and clinical research to provide a thorough understanding on the role of immunity in neuropsychiatry. Sociology, psychology, psychiatry, neuroscience and genetics have provided considerable explanations and solutions to some of the most intractable mental-health problems. But researchers are increasingly relying on investigations of the immune system to identify factors that can undermine and impair mental health. This book covers devastating mental-health conditions, such as depression, anxiety, schizophrenia, and autism-like spectrum disorders. In addition, degenerative disorders of the brain, such as Parkinson’s and Alzheimer’s-like dementia are explored. Considers both basic human and animal studies that address immunological changes relating to mental health problems across the lifespan Incorporates techniques, concepts and ideas from a variety of social, behavioral and life sciences Explores the relatively new area of the microbiome and how the microbial composition of the gut influences brain function and mental health


Book Synopsis The Immune System and Mental Health by : Hymie Anisman

Download or read book The Immune System and Mental Health written by Hymie Anisman and published by Academic Press. This book was released on 2018-07-19 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Immune System and Mental Health fully investigates how immune-related cellular, molecular and anatomical changes impact mental functioning. The book combines human and animal studies to reveal immunological changes related to mental-health problems. In addition, users will find comprehensive information on new research related to the microbial composition of the gut, aka, the microbiome, and how it influences brain function and mental health. Common comorbidities with mental illness and their inherent immunological or inflammatory components are also covered. Written by leaders in the field, the book synthesizes basic and clinical research to provide a thorough understanding on the role of immunity in neuropsychiatry. Sociology, psychology, psychiatry, neuroscience and genetics have provided considerable explanations and solutions to some of the most intractable mental-health problems. But researchers are increasingly relying on investigations of the immune system to identify factors that can undermine and impair mental health. This book covers devastating mental-health conditions, such as depression, anxiety, schizophrenia, and autism-like spectrum disorders. In addition, degenerative disorders of the brain, such as Parkinson’s and Alzheimer’s-like dementia are explored. Considers both basic human and animal studies that address immunological changes relating to mental health problems across the lifespan Incorporates techniques, concepts and ideas from a variety of social, behavioral and life sciences Explores the relatively new area of the microbiome and how the microbial composition of the gut influences brain function and mental health


Handbook of Socioeconomic Determinants of Occupational Health

Handbook of Socioeconomic Determinants of Occupational Health

Author: Töres Theorell

Publisher: Springer Nature

Published: 2020-08-12

Total Pages: 704

ISBN-13: 3030314383

DOWNLOAD EBOOK

This anthology provides readers of scientific literature on socioeconomic factors and working conditions with the newest knowledge in this field. Since our world is subjected to constant change in accelerating speed, scientific reviews and updates are needed. Fortunately, research methodology in epidemiology, physiology, psychology and sociology is also developing rapidly and therefore the scientific community can provide politicians and policy makers with increasingly sophisticated and exact descriptions of societal factors in relation to work. The anthology starts in the macro level sphere – with international perspectives and reviews related to working conditions in relation to political change (the fall of the Soviet Union) gender, age, precarious employment, national economy and retirement. Two chapters relate to national policies and activities in international organizations. The second part of the book relates to the meso level sphere – with reviews on social patterns in distributions of psychosocial and physical risks at work in general as well as reviews on noise, shift work, under/overemployment, occupational physical activity, job intensity (which may be a particularly important problem in low income countries), digitization in modern work, climate change, childhood determinants of occupational health in adult years and theoretical models currently used in occupational epidemiology - demand/control, effort/reward, organizational justice, psychosocial safety climate, conflicts, bullying/harassment. This part of the book ends with two chapters on interventions (one chapter on the use of cultural interventions and one on interventions and their evaluation in general) and two chapters on financial aspects of poor/good work environments and evaluations of interventions. In the third part of the book the micro level is addressed. Here mechanisms translating working conditions into physiology are discussed. This starts in general theory relating basic theories regarding energy storage and release to psychosocial theory (extension of demand control theory). It also includes regeneration physiology, autonomic nervous system function, immunology and adverse behaviour. Sections in the Handbook: Macro-level determinants of occupational health: Akizumi Tsutsumi, Meso-level determinants of occupational health: Morten Wahrendorf and Jian Li, Micro-level determinants of occupational health: Bradley J. Wright


Book Synopsis Handbook of Socioeconomic Determinants of Occupational Health by : Töres Theorell

Download or read book Handbook of Socioeconomic Determinants of Occupational Health written by Töres Theorell and published by Springer Nature. This book was released on 2020-08-12 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This anthology provides readers of scientific literature on socioeconomic factors and working conditions with the newest knowledge in this field. Since our world is subjected to constant change in accelerating speed, scientific reviews and updates are needed. Fortunately, research methodology in epidemiology, physiology, psychology and sociology is also developing rapidly and therefore the scientific community can provide politicians and policy makers with increasingly sophisticated and exact descriptions of societal factors in relation to work. The anthology starts in the macro level sphere – with international perspectives and reviews related to working conditions in relation to political change (the fall of the Soviet Union) gender, age, precarious employment, national economy and retirement. Two chapters relate to national policies and activities in international organizations. The second part of the book relates to the meso level sphere – with reviews on social patterns in distributions of psychosocial and physical risks at work in general as well as reviews on noise, shift work, under/overemployment, occupational physical activity, job intensity (which may be a particularly important problem in low income countries), digitization in modern work, climate change, childhood determinants of occupational health in adult years and theoretical models currently used in occupational epidemiology - demand/control, effort/reward, organizational justice, psychosocial safety climate, conflicts, bullying/harassment. This part of the book ends with two chapters on interventions (one chapter on the use of cultural interventions and one on interventions and their evaluation in general) and two chapters on financial aspects of poor/good work environments and evaluations of interventions. In the third part of the book the micro level is addressed. Here mechanisms translating working conditions into physiology are discussed. This starts in general theory relating basic theories regarding energy storage and release to psychosocial theory (extension of demand control theory). It also includes regeneration physiology, autonomic nervous system function, immunology and adverse behaviour. Sections in the Handbook: Macro-level determinants of occupational health: Akizumi Tsutsumi, Meso-level determinants of occupational health: Morten Wahrendorf and Jian Li, Micro-level determinants of occupational health: Bradley J. Wright


Stress, Stress Hormones and the Immune System

Stress, Stress Hormones and the Immune System

Author: Julia C. Buckingham

Publisher: Wiley-Blackwell

Published: 1997-12-29

Total Pages: 440

ISBN-13:

DOWNLOAD EBOOK

Provides a uniquely broad overview.-- Covers neuroendocrine, automatic and immune systems, and hormone interaction.


Book Synopsis Stress, Stress Hormones and the Immune System by : Julia C. Buckingham

Download or read book Stress, Stress Hormones and the Immune System written by Julia C. Buckingham and published by Wiley-Blackwell. This book was released on 1997-12-29 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a uniquely broad overview.-- Covers neuroendocrine, automatic and immune systems, and hormone interaction.


Stress, Immunity, and Aging

Stress, Immunity, and Aging

Author: E. L. Cooper

Publisher: CRC Press

Published: 2020-07-24

Total Pages: 348

ISBN-13: 1000146456

DOWNLOAD EBOOK

This book contains two personal reminiscences of historical importance to research on stress and infectious disease. It deals with perspectives on immunity, aging, and disease and the prospects for immunorestoration in the treatment of immunodeficiency arising from aging and stress.


Book Synopsis Stress, Immunity, and Aging by : E. L. Cooper

Download or read book Stress, Immunity, and Aging written by E. L. Cooper and published by CRC Press. This book was released on 2020-07-24 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains two personal reminiscences of historical importance to research on stress and infectious disease. It deals with perspectives on immunity, aging, and disease and the prospects for immunorestoration in the treatment of immunodeficiency arising from aging and stress.