Anxiety
Anxiety and insomnia tied to lower levels of key immune cells in young women
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A study of young female university students in Saudi Arabia has found that symptoms of anxiety and insomnia are associated with reduced levels of natural killer cells, key components of the immune system’s early defense. The findings suggest that psychological stressors may be linked to weaker immune responses, though the research shows correlation rather than causation and is limited to a small, specific population.
Researchers have identified a specific group of neurons in the amygdala that plays a central role in anxiety and social withdrawal. By restoring normal activity in this circuit, they reversed anxiety-related behaviors in mice. The findings point to a potential new target for treating emotional disorders.
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A new study shows that slowing breathing rates can reduce anxiety-like behaviors even without any conscious effort or belief in its effects. Researchers used mice to demonstrate that the benefits come from physiological changes rather than placebo. The findings were presented at a summit in Los Angeles earlier this month.
Researchers at the University of Utah have found that anxiety in mice is regulated by two groups of microglia, immune cells that act as accelerators and brakes. This discovery challenges the traditional focus on neurons for mental health issues. The findings, published in Molecular Psychiatry, suggest potential new approaches to treating anxiety disorders.