Neuroinflammation is a complex process involving both the peripheral circulation
and the Central Nervous System (CNS) and is considered to underlie many CNS
disorders including depression, anxiety, schizophrenia, and pain. Stressors
including early-life adversity, psychosocial stress, and infection appear to
prime microglia toward a pro-inflammatory phenotype. Subsequent inflammatory
challenges then drive an exaggerated neuroinflammatory response involving the
upregulation of pro-inflammatory mediators that is associated with CNS
dysfunction. Several pharmacologic inhibitors of pro-inflammatory cytokines
including TNF-α and IL-1β show good clinical efficacy in terms of ameliorating
neuroinflammatory processes. Mind/body and plant-based interventions such as
yoga, breathing exercises, meditation, and herbs/spices have also been
demonstrated to reduce pro-inflammatory cytokines and have a positive impact on
depression, anxiety, cognition, and pain. As the intricate connections between
the immune system and the nervous system continue to be elucidated, successful
therapies for reducing neuroinflammation will likely involve an integrated
approach combining drug therapy with nonpharmacologic interventions.