How working out calms your angry blood cells
Physical exercise mitigates chronic psychological stress‐induced vascular inflammation via the BDNF–Kif4–TARM1 axis
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When you're stressed, your body makes angry blood cells that hurt your heart. Working out makes a brain chemical called BDNF that tells those angry cells to calm down by stopping a protein chain (Kif4–TARM1) that makes them inflammatory.
Surprising Findings
BDNF, typically known for brain health and neuroplasticity, directly regulates immune cell inflammation in the bloodstream.
People think BDNF only helps with mood and memory—but this study shows it’s a master regulator of vascular inflammation, linking mental health, exercise, and heart disease in one pathway.
Practical Takeaways
If you're stressed and have heart disease, aim for 3–5 sessions of moderate aerobic exercise per week (brisk walking, cycling, swimming) to potentially lower vascular inflammation via BDNF.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When you're stressed, your body makes angry blood cells that hurt your heart. Working out makes a brain chemical called BDNF that tells those angry cells to calm down by stopping a protein chain (Kif4–TARM1) that makes them inflammatory.
Surprising Findings
BDNF, typically known for brain health and neuroplasticity, directly regulates immune cell inflammation in the bloodstream.
People think BDNF only helps with mood and memory—but this study shows it’s a master regulator of vascular inflammation, linking mental health, exercise, and heart disease in one pathway.
Practical Takeaways
If you're stressed and have heart disease, aim for 3–5 sessions of moderate aerobic exercise per week (brisk walking, cycling, swimming) to potentially lower vascular inflammation via BDNF.
Publication
Journal
Clinical and Translational Medicine
Year
2026
Authors
Xianghui Zheng, Yunqi Li, Peiyao Wang, Zhou‐Wei Guo, Yuxuan Liu, Qi Liu, Baitao Wang, Huiyu Wang, Lizhi Zheng, Cien Li, Shuhong Liu, Shiyu Wang, X. Hou, Xiaojun Wu, Yong Sun, Bo Yu, Yang Zheng, Jian Wu
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Claims (6)
If you have heart disease and feel really stressed, working out regularly might help your body produce more of a brain-friendly chemical and reduce harmful inflammation in your blood.
When mice under long-term stress and with clogged arteries get to run on a wheel, their body produces a protein that calms down harmful immune cells, which helps reduce artery inflammation and keeps plaques from becoming dangerous.
In mice, a natural brain protein called BDNF helps calm down immune cells that cause inflammation by blocking a specific chemical signal, which in turn reduces the release of harmful inflammatory chemicals.
In mice, a protein called Kif4 helps move another protein, TARM1, to the surface of certain immune cells, making them stick more to blood vessel walls and causing more inflammation.
When mice with hardened arteries and ongoing stress get regular exercise, their artery plaques become smaller and more stable, thanks to a specific biological switch being turned off.