ldn

When the Endogenous Opioid System Falters Endorphin / Opioidergic Dysfunction and Its Link to Dysautonomia

dysautonomia

When the Endogenous Opioid System Falters Endorphin / Opioidergic Dysfunction and Its Link to Dysautonomia

Yoon Hang Kim, MD, MPHBoard-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Medical Disclaimer: This article is for educational purposes only and does not constitute medical advice. The information here should not be used to diagnose or treat any condition without the guidance of a qualified, licensed clinician familiar

By Yoon Hang Kim MD
Low-Dose Naltrexone (LDN) in Solid Organ Transplant Recipients on Chronic Immunosuppression

ldn

Low-Dose Naltrexone (LDN) in Solid Organ Transplant Recipients on Chronic Immunosuppression

CLINICAL REFERENCE NOTE Low-Dose Naltrexone (LDN) in Solid Organ Transplant Recipients on Chronic Immunosuppression Prepared by Yoon Hang Kim, MD, MPH  |  Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Reviewed: May 2026  |  Internal clinical reference — not patient-facing Bottom line The concern is pharmacodynamic and entirely theoretical. There are no

By Yoon Hang Kim MD
Low Dose Naltrexone (LDN) in Functional Medicine: A Practical Guide by Dr. Yoon Hang Kim in San Antonio

LDN Primer

Low Dose Naltrexone (LDN) in Functional Medicine: A Practical Guide by Dr. Yoon Hang Kim in San Antonio

Dr. Kim's LDN Primer Book which covers basics of LDN is now available in Amazon - https://www.amazon.com/dp/B0GZ9R4667/ref=sr_1_1?crid=Y99J3Z8DLKY2&dib=eyJ2IjoiMSJ9.Kq_wzqE15_OGnVOgkdQHbQdwZK32CtfPr6H9aL8NtC2JdRuLQJkskth03cPcjIrlnpNzzTw6NqVAdjbFJvOflQ.owU6k5lJ4jkFwPod1eq9pIC126Fde8sml1nlDi_ameE&dib_tag=se&keywords=Low+Dose+Naltrexone+%28LDN%29+Primer%

By Yoon Hang Kim MD
CIRS vs. MCAS: Understanding Two Overlapping but Distinct Chronic Inflammatory Conditions

CIRS

CIRS vs. MCAS: Understanding Two Overlapping but Distinct Chronic Inflammatory Conditions

By Yoon Hang Kim, MD, MPH  |  Board-Certified in Preventive Medicine | Integrative & Functional Medicine Physician Chronic illness patients — especially those navigating mold illness, Lyme disease, autoimmune conditions, or post-infectious syndromes — frequently encounter two acronyms that are both confusing and critically important: CIRS and MCAS. These conditions share a great deal

By Yoon Hang Kim MD
Cholangiocarcinoma -A Clinical Overview: Staging, Treatment Algorithm, and an Integrative Oncology Checklist

Integrative Oncology

Cholangiocarcinoma -A Clinical Overview: Staging, Treatment Algorithm, and an Integrative Oncology Checklist

Cholangiocarcinoma (CCA) is an aggressive malignancy arising from the epithelial lining of the biliary tree. The disease is traditionally divided by anatomic origin into three subtypes: intrahepatic (iCCA, arising from small bile ducts within the liver), perihilar (pCCA, at the hepatic duct confluence), and distal (dCCA, within the extrahepatic bile

By Yoon Hang Kim MD