// TOXINS & ENVIRONMENT

Toxins & Environment

Microplastics, BPA, phthalates, heavy metals, pesticides, endocrine disruptors

Microplastics have been found in 77% of human blood samples tested. BPA and phthalates are in food packaging, receipts, and personal care products — and they mimic estrogen, disrupting your endocrine system at doses the FDA still considers 'safe.' Heavy metals accumulate in organs over decades. Glyphosate residues are on most non-organic produce. These aren't fringe concerns — they're peer-reviewed findings published in The Lancet, Environment International, and JAMA.

HPA AXIS \u00B7 STRESS RESPONSEHYPOTHALAMUSParaventricular nucleus (PVN)CRHPITUITARYAnterior \u00B7 Corticotroph cellsACTHADRENAL CORTEXZona fasciculataCORTISOLNEGATIVEFEEDBACKACUTE (adaptive)Energy mobilizationEnhanced focusAnti-inflammatoryCHRONIC (harmful)Immune suppressionHippocampal atrophy · -14%Insulin resistanceSleep disruptionLupien et al., Nature Reviews Neuroscience 2009

Mechanism

Threat / StressorAmygdalaHypothalamus: CRH \u2191Pituitary: ACTH \u2191Adrenal: Cortisol \u2191Acute: adaptiveChronic: destructiveLupien et al., Nature Reviews Neuroscience 2009
77%

of human blood samples contained microplastics in a landmark 2022 study — including PET, polystyrene, and polyethylene particles

Leslie et al., Environment International 2022

// Weekly Intelligence

Don't guess. Understand.

Every week, we pick one study that changes how you think about your health. We explain the biology, grade the evidence, and tell you exactly what it means — years before your doctor hears about it.

No spam. Ever. Unsubscribe anytime. No products. Ever.