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Microplastics are everywhere—but how much should we really worry about them?In this episode of Longevity Science with Matt Kaeberlein, I sit down with environmental toxicologist and microplastics researcher Dr. Matt Campen to separate evidence from hype and explore what the science actually tells us about environmental exposures and human health.We discuss the rapid rise of plastic production, what researchers are finding in human tissues—including the brain—and why food may be a much more important source of exposure than most people realize. Matt explains the difference between microplastics and nanoplastics, what we know (and don’t know) about their potential role in aging and dementia, and why solving this problem will require more than individual lifestyle changes.We also broaden the conversation to other environmental risks, including heavy metals, vaping-related exposures, air pollution, and the growing impact of wildfire smoke on brain health and healthy aging.In this episode:Are microplastics a major threat to human health?What are microplastics and nanoplastics?Why food may be the largest source of exposureMicroplastics in the human brain: what the data showThe possible connection between microplastics and dementiaHow environmental pollutants may interact with aging biologyHeavy metals, vaping, and other overlooked exposuresWildfire smoke and its effects on the brainPractical steps to reduce risk without becoming overwhelmedWhy policy solutions may matter more than individual behaviorThe field of microplastics research is still young, and many important questions remain unanswered. This conversation focuses on what the evidence supports today, where uncertainty remains, and what research is most needed moving forward.If you enjoy evidence-based discussions on longevity science, aging biology, and healthspan medicine, please like, subscribe, and share the episode.#Longevity #Microplastics #BrainHealth #Dementia #Aging #Healthspan #EnvironmentalHealth #WildfireSmoke #Nanoplastics #LongevityScienceAbout Matt Campen: Matt Campen is a Distinguished Professor at the University of New Mexico and one of the world's leading researchers studying environmental pollutants, including microplastics, air pollution, heavy metals, and their effects on human health and aging. His laboratory has published pioneering work demonstrating the presence of microplastics in human tissues, including the brain, and investigates how environmental exposures contribute to chronic disease and neurodegeneration.
