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Related Concept Videos

Brain Imaging01:14

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The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
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Lifestyle risks associated with brain functional connectivity and structure.

Edmund T Rolls1,2,3, Ruiqing Feng1, Jianfeng Feng1,2,4

  • 1Department of Computer Science, University of Warwick, Coventry, UK.

Human Brain Mapping
|February 17, 2023
PubMed
Summary
This summary is machine-generated.

Healthy lifestyle choices significantly impact brain connectivity and structure. Poor lifestyle habits, including inactivity and smoking, are linked to reduced functional connectivity in key brain regions.

Keywords:
brain structure and functional connectivitydietdrinkinghippocampuslifestyleorbitofrontal cortexphysical and leisure activitysmoking

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Area of Science:

  • Neuroscience
  • Public Health
  • Human Anatomy

Background:

  • Lifestyle factors influence health and brain function, but underlying neural mechanisms remain unclear.
  • Understanding these links is crucial for public health initiatives and personalized medicine.

Purpose of the Study:

  • To investigate the associations between multiple lifestyle risk factors and brain functional connectivity.
  • To examine the relationship between lifestyle factors and brain structure (cortical thickness, subcortical volume).

Main Methods:

  • Utilized a general linear model on UK Biobank data (19,415 participants, aged 45-78) and Human Connectome Project (HCP) data.
  • Assessed combined and individual lifestyle risks: alcohol use, smoking, diet, physical activity, leisure activity, and mobile phone use.
  • Mapped associations with brain functional connectivity using the HCP atlas and analyzed cortical thickness and subcortical volumes.

Main Results:

  • Higher combined lifestyle risk scores correlated with lower whole-brain functional connectivity, particularly in somatosensory/motor, hippocampal, and social behavior networks.
  • Specific risks linked to distinct patterns: low physical/leisure activity affected motor and memory regions; low mobile phone use impacted social processing areas; smoking affected attention networks.
  • Poor lifestyle scores were also associated with reduced cortical thickness and subcortical volumes (hippocampus, amygdala, globus pallidus).

Conclusions:

  • This large-scale analysis highlights a significant relationship between human lifestyle and brain structure and function.
  • Findings provide a basis for understanding individual brain differences and developing targeted interventions.