Everyone calls LI-4 the headache point. Here's what's actually happening

In this video I break down the science behind LI-4 (He Gu) — acupuncture's most famous point. From the endorphin mechanism to the pregnancy contraindication, here's what's actually happening when you needle this point. 🎁 Free Top 10 Acupuncture Points Guide — grab it here: https://courses.acupuncturemasterclas... 📚 Research References — LI4 (He Gu) Every key claim in this video is sourced below. [1] Needle insertion & tissue mediators Mihardja, H., Srilestari, A., & Budianto, S.A. (2017). Journal of Physics: Conference Series, 884, 012065. 🔗 https://www.researchgate.net/publicat... [2] Electroacupuncture increases beta-endorphin Setiawardhani, A.L. et al. (2017). Journal of Physics: Conference Series, 884, 012027. 🔗 https://doi.org/10.1088/1742-6596/884... [3] Naloxone partially reverses acupuncture analgesia Pomeranz, B. & Chiu, D. (1976). Life Sciences, 19(11), 1757-1762. 🔗 https://pubmed.ncbi.nlm.nih.gov/186416/ [4] fMRI evidence — limbic system activation Hui, K.K. et al. (2000). Human Brain Mapping, 9(1), 13-25. 🔗 https://doi.org/10.1002/(sici)1097-01... [5] Prostaglandin elevation mechanism Kim, J. et al. (2000). Gynecologic and Obstetric Investigation, 50(4), 225-230. 🔗 https://doi.org/10.1159/000010321 [6] LI4 in labour induction protocols Coyle, M.E. et al. (2015). Midwifery. 🔗 https://www.sciencedirect.com/science... [7] Systematic review — no clear evidence of harm in pregnancy Carr, D.J. (2015). Acupuncture in Medicine, 33(5), 413-419. 🔗 https://pmc.ncbi.nlm.nih.gov/articles... [8] Systematic review — insufficient evidence on forbidden points in pregnancy Levett, K.M., Sutcliffe, K.L., & Betts, D. (2019). Medical Acupuncture, 31(6), 346-360. 🔗 https://pmc.ncbi.nlm.nih.gov/articles... [9] LI4 acupressure produces analgesia via endorphin secretion Dabiri, F. & Shahi, A. (2014). Oman Medical Journal, 29(6), 425-429. 🔗 https://pmc.ncbi.nlm.nih.gov/articles... [10] Systematic review — acupressure produces endogenous opioids Li, T. et al. (2021). Evidence-Based Complementary and Alternative Medicine. 🔗 https://doi.org/10.1155/2021/8862399 [11] Acupuncture and endorphins — frequency dependent release Han, J.S. (2004). Neuroscience Letters, 361(1-3), 258-261. 🔗 https://pubmed.ncbi.nlm.nih.gov/15135... 🌐 Website: www.acupuncturemasterclass.com 📸 Instagram: @acumasterclass