{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"The Dr Kumar Discovery","title":"The Silent Toxin Buildup That Ages Your Brain | Dr. Anne Marie Fine","html":"","width":"100%","height":180,"duration":5108,"description":"Today we're getting into something most of us never stop to think about: the chemicals we're all swimming in every day, and whether they're quietly aging our brains faster than our genes ever could.\nIn a UK Biobank study of blood plasma proteins, people with youthful brains looked like they carried two protective copies of APOE2, the good version of the Alzheimer's gene, and people with aged brains looked like APOE4 carriers, the highest risk version, regardless of what genotype they actually had. As Dr. Fine put it, \"your blood is telling you more than your genome.\"\nMy guest is Dr. Anne Marie Fine, an environmental medicine physician who trains other physicians through her own one-year clinical training course and is fellowed with the American Academy of Environmental Medicine. She has practiced for about 25 years, back when doctors measured stored pollutants with fat biopsies of the buttocks, and now tests every patient for roughly ten to twelve metals. She also traveled to Switzerland last year to undergo a plasma-filtering procedure on herself.\nWe start with the exposome, the lifetime accumulation of every chemical exposure a person carries, and how Dr. Fine and her business partner, Dr. Lynn Patrick, narrowed that huge idea down into something more workable they call the pollutome in a 2022 paper. From there we get into the UK Biobank work looking at 44,000 people across eleven organs, where the brain and immune system, not the heart, showed the strongest relationship to aging. Dr. Fine is careful to frame the brain-aging finding as motivation, not proof of reversal. She still holds the line that one copy of APOE4 raises Alzheimer's risk three to four times, and two copies raises it ten to fifteen times. The question the study raises is simply whether your brain is behaving young or old right now, apart from that fixed genetic risk.\nThe rest of the conversation moves through the toxicants she sees every day in practice: PFAS, or forever chemicals, that blunt...","thumbnail_url":"https://img.transistorcdn.com/1b0HAhl7LyS1JMvttJBUPVo13Xhw89dNIYFNVWa7Un0/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS83NGVi/ODc5ZmE2MTI0Njdj/NWRjODE2NTkzNTQ0/ZjY0Yi5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}