✅ Key Literature on Cold Exposure and Lipid Profiles 1. Long-Term, Repeated Cold Water Immersion (CWI) in Humans A 2023 clinical study of 28 healthy volunteers over ~5 months of repeated CWI reported significant decreases in LDL‑C, total cholesterol, triglycerides, VLDL, and PCSK9, along with improved vascular markers and an ~11% reduction in liver fat […]