Microplastics are everywhere. They're in our food, our water, the air we breathe, and—according to recent research—even in the human brain. But how concerned should we actually be? In the latest episode of Longevity Science with Matt Kaeberlein, I sat down with environmental toxicologist Dr. Matt Campen, one of the leading researchers studying microplastics and other environmental exposures, to separate what the science tells us from the hype. We discuss: 🧠 What researchers have found in human brain tissue 🥩 Why food may be a bigger source of microplastic exposure than most people realize 🧬 The emerging links between microplastics, dementia, and aging biology 🔥 How wildfire smoke affects brain health and cognitive function ☣️ Heavy metals, air pollution, and other environmental risks that deserve more attention 🏛️ Why meaningful solutions will likely require policy and infrastructure changes, not just individual behavior One of the things I appreciated most about this conversation is Matt's balanced perspective. Despite being at the forefront of this research, he's not advocating panic or drastic lifestyle changes. Instead, he emphasizes the importance of understanding the evidence, recognizing uncertainty, and focusing on the interventions most likely to have meaningful impact. As with many topics in longevity science, the challenge is separating legitimate concerns from fear-driven narratives and marketing claims. This conversation is an excellent example of how to approach a rapidly evolving area of research with both curiosity and scientific rigor. Check out the full interview here: youtube.com/watch?v=J64kHdKN…