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Cervello e psiche

Brain and mental health

Preserving cognitive functions is a fundamental goal of global health, particularly regarding the prevention and research of neurodegenerative diseases such as Alzheimer’s and Parkinson. At the same time, it is essential to protect psychological health, which is challenged by social, healthcare, and geopolitical complexities. Yet, research increasingly shows that preserving brain health and protecting mental well-being is a single, unified mission, with two interconnected aspects to be nurtured through awareness and healthy lifestyles. Taking care of our emotional and psychosocial well-being today can also help preserve our brain health, for the benefit of ourselves and our loved ones.

Psychological stress and oxidative stress

We often hear about oxidative stress, which is sometimes confused with psychological stress. However, these are two distinct yet related processes. Oxidative stress refers to the mechanism of cellular damage caused by the accumulation of free radicals. It is triggered by factors such as pollution, an unbalanced diet, smoking, alcohol abuse, and drug use. Oxidative stress plays a role in the development of neurodegenerative diseases, such as Alzheimer’s and Parkinson’s. A 2009 scientific review investigated the relationship between oxidative stress and emotional stress, focusing particularly on the causal role of oxidative stress in anxiety. Conversely, anxiety and depression can negatively influence oxidative stress, through prolonged psychophysical distress and promoting risky behaviors such as smoking, alcoholism, or poor nutrition.

Stress and neuroinflammation

Neurodegenerative diseases are also characterized by neuroinflammation, linked to oxidative stress through mutually influencing processes. Particularly promising for neurodegeneration prevention is the study of the relationship between psychological stress and neuroinflammation. Research focuses on the microglia, immune cells of the Central Nervous System, whose activation is studied as an indicator of neuroinflammation. A 2016 review demonstrates the role of psychological stress in brain neuroinflammation, investigating the effect of stress on microglial activity. Results confirm that a series of psychosocial stress factors lead to elevated microglial activity in the hippocampus and likely in other regions of the brain.

Depression and neuroinflammation

A 2020 review investigates the influence of brain inflammation on major depression, with microglial activation. The study suggests that counteracting brain inflammation could be a therapeutic target for depression treatment. Depression, in turn, has already been studied as a possible causal factor or very early prodromal symptom of dementia, Parkinson’s, and Alzheimer’s, which exhibit neuroinflammation. A study from the University of Siena highlights the bidirectional effect between depression and neuroinflammation. The two conditions are closely connected and can feed each other: the inflammatory response can lead to depression, and depression can contribute to inflammation.

The importance of lifestyle

Science increasingly uncovers correlations, causal relationships, and likely mutual interactions between psychological stress, neuroinflammation, and neurodegeneration. Studies reveal the deep biochemical connection between brain health and mental well-being, between cognitive functions and emotional well-being. Protecting the brain and psychological health is an achievable goal that benefits the whole organism and, by extension and connection, the family and community. We can prevent neuroinflammation and slow the epigenetic clock by taking responsible actions regarding our lifestyle.

A key factor is nutrition. Scientific studies focus on the gut-brain-microbiota axis, showing the role of the gastrointestinal microbiota in regulating neuroinflammation. Neuroinflammation, in turn, can promote stress-related disorders, which may affect the microbiota, creating a vicious or virtuous cycle of intestinal, mental, and brain health. Physical activity is essential to counter neuroinflammation and neurodegeneration, even more effective when integrated with meditative and contemplative practices. The Patrizio Paoletti Foundation develops and studies these forms of mindful movement, such as Quadrato Motor Training, whose practice has shown significant benefits on cognitive functions and neural plasticity.

Self-care: an act of responsibility

Central remains self-care, of our body and inner world. It is essential to learn how to preserve and regenerate energy, placing global health, which is also emotional, first. Taking care of oneself, protecting oneself from stress and depression, without relegating it to the bottom of our priority list, is an act of awareness and responsibility, also toward family, colleagues, and friends. They all benefit positively from the cultivation of our health.

If the exploration of the precise biochemical mechanisms linking brain and mind health, body, and psyche is still in its infancy, it is clear that the interaction and integration of systems reminds us of the deep connection and interdependence that characterizes life. Recognizing and honoring this interdependence allows us to care for increasingly larger systems, starting from the body, extending to family, community, and the Planet.

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Bibliografia
  • Amodeo, G., Trusso, M. A., & Fagiolini, A. (2017). Depression and inflammation: disentangling a clear yet complex and multifaceted link. Neuropsychiatry7(4), 448-457.
  • Bouayed, J., Rammal, H., & Soulimani, R. (2009). Oxidative stress and anxiety: relationship and cellular pathways. Oxidative medicine and cellular longevity2(2), 63-67.
  • Calcia, M. A., Bonsall, D. R., Bloomfield, P. S., Selvaraj, S., Barichello, T., & Howes, O. D. (2016). Stress and neuroinflammation: a systematic review of the effects of stress on microglia and the implications for mental illness. Psychopharmacology233, 1637-1650.
  • Gustafsson, H., Nordström, A., & Nordström, P. (2015). Depression and subsequent risk of Parkinson disease: a nationwide cohort study. Neurology84(24), 2422-2429.
  • Holmquist, S., Nordström, A., & Nordström, P. (2020). The association of depression with subsequent dementia diagnosis: A Swedish nationwide cohort study from 1964 to 2016. PLoS medicine17(1), e1003016.
  • Rea, K., Dinan, T. G., & Cryan, J. F. (2016). The microbiome: a key regulator of stress and neuroinflammation. Neurobiology of stress4, 23-33.
  • Teleanu, D. M., Niculescu, A. G., Lungu, I. I., Radu, C. I., Vladâcenco, O., Roza, E., … & Teleanu, R. I. (2022). An overview of oxidative stress, neuroinflammation, and neurodegenerative diseases. International journal of molecular sciences23(11), 5938.
  • Troubat, R., Barone, P., Leman, S., Desmidt, T., Cressant, A., Atanasova, B., … & Camus, V. (2021). Neuroinflammation and depression: A review. European journal of neuroscience53(1), 151-171.
  • Woodburn, S. C., Bollinger, J. L., & Wohleb, E. S. (2021). The semantics of microglia activation: neuroinflammation, homeostasis, and stress. Journal of neuroinflammation18, 1-16.
Immagini

Brain functioning, Hardship, Increase your well-being, News from neuroscience, Nutrire la mente, Prevenzione e benessere mentale, Proteggi la salute del tuo cervello, Sani stili di vita per invecchiare in salute, Stress

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