Gurcharan Kaur, PhD, is Emeritus Scientist-CSIR and University Honorary Professor, Department of Biotechnology, Guru Nanak Dev University, Amritsar, India. Her research areas and expertise include ageing modulation through intermittent fasting and natural products, especially with respect to the brain health. She is the recipient of IAN-BK Bachhawat Memorial Life Time Achievement Award, and is a Fellow of National Academy of Sciences, India along with several other awards and honors in recognition of her contributions in the area of adult brain plasticity in health and disease. She is currently the section editor of the Neurobiology and Ageing section of the journal Biogerontology.  Suresh I. S. Rattan PhD, DSc, is Professor Emeritus at the Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark. His research areas and expertise include ageing of human cells and application of the concept of mild stress-induced hormesis as a modulator of ageing. He is the recipient of the Lord Cohen Medal in Gerontology from the British Society for Research on Ageing (BSRA). He is the editor-in-chief of the journal Biogerontology, and the editor for the book series Healthy Ageing and Longevity. He is the present Chairman of the Biological Section of the European Region of the International Association of Gerontology and Geriatrics (IAGG-ER).

• Part-1: Concepts, definitions and historical perspectives.- Chapter-01: Defining, re-defining, and understanding the brain and mental health during ageing.- Chapter-02: Social, historical and anthropological aspects of research on the brain and ental health in aging.- Chapter-03: Understanding hormesis for optimizing brain health.- Part-2: Biological modulators of the ageing brain.- Chapter-04: Dietary constituents for mental health promotion and healthy ageing.- Chapter-05: Physical activity and dietary interventions for mental health in ageing and longevity.- Chapter-06: Immunity, immunosenescence, brain and cognitive/mental health.- Chapter-07 Neurovirology and Brain Health – A Microglial Perspective.- Chapter-08: Gut microbiota-brain axis in healthy aging.- Chapter-09: Connexin-mediated nuroglial gap Junction communication: Unravelling its significance in brain health and aging.- Chapter-10: Maintenance of mitochondrial dynamics for healthy brain aging.- Part-3:  Brain health maintenance, promotion and recovery in ageing.- Chapter-11: Phytochemicals and vitagenes for a healthy brain.- Chapter-12: Infection, neuroinflammation and interventions for healthy brain and longevity.- Chapter-13: Nutraceuticals as an intervention for healthy brain aging.- Chapter-14: Pharmacological interventions for maintaining brain health in ageing.- Chapter-15: Sleep and circadian rhythms as modulators of mental health in Ageing.- Part-4:  Mental health maintenance, promotion and recovery in ageing.- Chapter-16: The impact of psychopathology and psychological well-being on cognitive health.- Chapter-17: The neuroscience of positive emotions and gratitude in healthy ageing and longevity.- Chapter-18: Cognitive profiles across normal and unhealthy ageing.- Chapter-19: Sleep and Mental Health in the Aging Population.- Chapter-20: Brain health of women beyond middle age: hormonal and non-hormonal perspective.- Chapter-21: Psychobiotics: a restorative intervention for lifestyle-induced deteriorations of mental health.- Chapter-22: Autism and ADHD in old age.- Chapter-23: Epigenetic regulation of age-associated neuropsychiatric disorders.

Gurcharan Kaur, PhD, is Emeritus Scientist-CSIR and University Honorary Professor, Department of Biotechnology, Guru Nanak Dev University, Amritsar, India. Her research areas and expertise include ageing modulation through intermittent fasting and natural products, especially with respect to the brain health. She is the recipient of IAN-BK Bachhawat Memorial Life Time Achievement Award, and is a Fellow of National Academy of Sciences, India along with several other awards and honors in recognition of her contributions in the area of adult brain plasticity in health and disease. She is currently the section editor of the Neurobiology and Ageing section of the journal Biogerontology.  Suresh I. S. Rattan PhD, DSc, is Professor Emeritus at the Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark. His research areas and expertise include ageing of human cells and application of the concept of mild stress-induced hormesis as a modulator of ageing. He is the recipient of the Lord Cohen Medal in Gerontology from the British Society for Research on Ageing (BSRA). He is the editor-in-chief of the journal Biogerontology, and the editor for the book series Healthy Ageing and Longevity. He is the present Chairman of the Biological Section of the European Region of the International Association of Gerontology and Geriatrics (IAGG-ER).

• Part-1: Concepts, definitions and historical perspectives.- Chapter-01: Defining, re-defining, and understanding the brain and mental health during ageing.- Chapter-02: Social, historical and anthropological aspects of research on the brain and ental health in aging.- Chapter-03: Understanding hormesis for optimizing brain health.- Part-2: Biological modulators of the ageing brain.- Chapter-04: Dietary constituents for mental health promotion and healthy ageing.- Chapter-05: Physical activity and dietary interventions for mental health in ageing and longevity.- Chapter-06: Immunity, immunosenescence, brain and cognitive/mental health.- Chapter-07 Neurovirology and Brain Health – A Microglial Perspective.- Chapter-08: Gut microbiota-brain axis in healthy aging.- Chapter-09: Connexin-mediated nuroglial gap Junction communication: Unravelling its significance in brain health and aging.- Chapter-10: Maintenance of mitochondrial dynamics for healthy brain aging.- Part-3:  Brain health maintenance, promotion and recovery in ageing.- Chapter-11: Phytochemicals and vitagenes for a healthy brain.- Chapter-12: Infection, neuroinflammation and interventions for healthy brain and longevity.- Chapter-13: Nutraceuticals as an intervention for healthy brain aging.- Chapter-14: Pharmacological interventions for maintaining brain health in ageing.- Chapter-15: Sleep and circadian rhythms as modulators of mental health in Ageing.- Part-4:  Mental health maintenance, promotion and recovery in ageing.- Chapter-16: The impact of psychopathology and psychological well-being on cognitive health.- Chapter-17: The neuroscience of positive emotions and gratitude in healthy ageing and longevity.- Chapter-18: Cognitive profiles across normal and unhealthy ageing.- Chapter-19: Sleep and Mental Health in the Aging Population.- Chapter-20: Brain health of women beyond middle age: hormonal and non-hormonal perspective.- Chapter-21: Psychobiotics: a restorative intervention for lifestyle-induced deteriorations of mental health.- Chapter-22: Autism and ADHD in old age.- Chapter-23: Epigenetic regulation of age-associated neuropsychiatric disorders.

Gurcharan Kaur, PhD, is Emeritus Scientist-CSIR and University Honorary Professor, Department of Biotechnology, Guru Nanak Dev University, Amritsar, India. Her research areas and expertise include ageing modulation through intermittent fasting and natural products, especially with respect to the brain health. She is the recipient of IAN-BK Bachhawat Memorial Life Time Achievement Award, and is a Fellow of National Academy of Sciences, India along with several other awards and honors in recognition of her contributions in the area of adult brain plasticity in health and disease. She is currently the section editor of the Neurobiology and Ageing section of the journal Biogerontology.  Suresh I. S. Rattan PhD, DSc, is Professor Emeritus at the Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark. His research areas and expertise include ageing of human cells and application of the concept of mild stress-induced hormesis as a modulator of ageing. He is the recipient of the Lord Cohen Medal in Gerontology from the British Society for Research on Ageing (BSRA). He is the editor-in-chief of the journal Biogerontology, and the editor for the book series Healthy Ageing and Longevity. He is the present Chairman of the Biological Section of the European Region of the International Association of Gerontology and Geriatrics (IAGG-ER).

• Part-1: Concepts, definitions and historical perspectives.- Chapter-01: Defining, re-defining, and understanding the brain and mental health during ageing.- Chapter-02: Social, historical and anthropological aspects of research on the brain and ental health in aging.- Chapter-03: Understanding hormesis for optimizing brain health.- Part-2: Biological modulators of the ageing brain.- Chapter-04: Dietary constituents for mental health promotion and healthy ageing.- Chapter-05: Physical activity and dietary interventions for mental health in ageing and longevity.- Chapter-06: Immunity, immunosenescence, brain and cognitive/mental health.- Chapter-07 Neurovirology and Brain Health – A Microglial Perspective.- Chapter-08: Gut microbiota-brain axis in healthy aging.- Chapter-09: Connexin-mediated nuroglial gap Junction communication: Unravelling its significance in brain health and aging.- Chapter-10: Maintenance of mitochondrial dynamics for healthy brain aging.- Part-3:  Brain health maintenance, promotion and recovery in ageing.- Chapter-11: Phytochemicals and vitagenes for a healthy brain.- Chapter-12: Infection, neuroinflammation and interventions for healthy brain and longevity.- Chapter-13: Nutraceuticals as an intervention for healthy brain aging.- Chapter-14: Pharmacological interventions for maintaining brain health in ageing.- Chapter-15: Sleep and circadian rhythms as modulators of mental health in Ageing.- Part-4:  Mental health maintenance, promotion and recovery in ageing.- Chapter-16: The impact of psychopathology and psychological well-being on cognitive health.- Chapter-17: The neuroscience of positive emotions and gratitude in healthy ageing and longevity.- Chapter-18: Cognitive profiles across normal and unhealthy ageing.- Chapter-19: Sleep and Mental Health in the Aging Population.- Chapter-20: Brain health of women beyond middle age: hormonal and non-hormonal perspective.- Chapter-21: Psychobiotics: a restorative intervention for lifestyle-induced deteriorations of mental health.- Chapter-22: Autism and ADHD in old age.- Chapter-23: Epigenetic regulation of age-associated neuropsychiatric disorders.