Bruce Lanphear, MD, MPH

Bruce Lanphear, MD, MPH, is a population medicine physician and professor at Simon Fraser University in Vancouver—and one of the world’s leading voices on how toxic chemicals shape children’s health. For more than 30 years, he’s studied everyday exposures like lead, fluoride, and pesticides, helping drive the landmark conclusion that there is no safe level of lead and informing federal health standards along the way. What sets Bruce apart is his focus upstream: not just treating disease but preventing it. Through his project Little Things Matter, he creates clear, engaging videos that reveal how invisible chemical exposures affect our kids—and what we can do to stop harm before it starts. He also writes on Substack about the hidden burden of toxic chemicals and why protecting our health begins long before the doctor’s office.