vagus nerve: brain-gut axis in psychiatric and inflammatory disorders – part II

The vagus nerve is a modulator of intestinal immune homeostasis. The gastrointestinal tract is constantly confronted with food antigens, possible pathogens, and symbiotic intestinal microbiota that present a risk factor for intestinal inflammation (63). It is highly innervated by vagal fibers that connect the CNS with the intestinal immune system, making vagus a major component, …

molecular changes in the brain with PTSD & depression

A comprehensive approach that examines the intersection of multiple biological processes is necessary to elucidate the development of stress-related disorders. In a new study, investigators from McLean Hospital, a member of the  Mass General Brigham healthcare system, working with colleagues at The University of Texas at Austin and Lieber Institute for Brain Development, uncovered both shared and distinct …

effects of yoga on brain waves & structural activation: a review

Previous research has shown the vast mental and physical health benefits associated with yoga. Yoga practice can be divided into subcategories that include posture-holding exercise (asana), breathing (pranayama, Kriya), and meditation (Sahaj) practice. Studies measuring mental health outcomes have shown decreases in anxiety, and increases in cognitive performance after yoga interventions. Similar studies have also shown cognitive …

emotional dysregulation & inflammation

Elevated inflammation is a risk factor for many psychiatric (e.g., depression) and somatic conditions (e.g., rheumatoid arthritis). Inflammation is influenced by psychosocial processes such as emotion regulation. Characterization of which emotion regulation characteristics impact inflammation could help refine psychosocial interventions aimed at normalizing health-harming inflammatory activity for individuals with psychiatric and somatic illnesses. We systematically reviewed the …

does mobile phone radiation affect the brain?

Does mobile phone radiation affect the brain and, if so, how does it do so? New studies shed light on these important questions, especially for young people whose brains are still developing. In their paper, a team of scientists from China* said that mobile phone radiation has been linked with memory loss, attention problems, cognitive …

when fear gets stuck: an epigenetic mechanism

Fear-based mental health conditions are common, impacting millions of people worldwide. Previous research has shown that specific regions and pathways in the brain may be responsible for processing fear. A new study from Linköping University in Sweden has revealed a biological mechanism that impacts fear pathways and how fear memories are stored in the brain. …

‘The Sleep of Reason Brings Forth Monsters:’ reframing mental distress as a call to action – part 1

Following are excerpts from the book, “Freedom: the end of the human condition” written by biologist, Jeremy Griffith, in 2016*. It recounts the psychological alienation felt by humans when a separation occurs between (the Grace of) instinct and the 'knowledge of right and wrong’ inherent in the social adaptations of living in society, what he …

breathing to manage your stress – a new approach

The role of the breath in meditation and stress management programs is well established. As a meditation strategy, focusing on the breath is primarily a tool for concentration, a place to focus the mind. As a stress management technique, slowing the breath, “belly breathing,” and focusing on the exhalation are all common (and effective) approaches to shifting the nervous system out of a …