05/01/2026
Check this out if you are interested in understanding body and brain communication, as well as, nervous system regulation.
The Brain-Immune Connection 🧠 (New Findings)
Recent research has reshaped how the relationship between the nervous and immune systems is understood. Rather than functioning as separate control centers, these systems form an integrated network that jointly regulates responses to stress, circadian rhythms, infection, and tissue injury. This unified perspective challenges older models and highlights coordinated brain body regulation.
Neurons and immune cells communicate using a shared set of signaling molecules, including neurotransmitters, cytokines, and hormones. This common language enables continuous, bidirectional interaction. Neural activity influences immune cell development, positioning, and function, while immune signals feed back to the brain to affect mood, cognition, and behavior.
These interactions can be viewed both spatially and temporally. Spatially, communication occurs within the brain, in peripheral organs, and across long distances in the body. Temporally, neural signals shape immune responses from early development through activation and resolution. Together, this co regulation helps explain links between stress, inflammation, and mental health, and it opens new directions for therapeutic approaches.
Reference: Leunig A., Gianeselli M., Russo S.J., Swirski F.K. Connection and communication between the nervous and immune systems Nature Reviews Immunology (2025)