Bulletproof Radio

This episode covers: • Microplastics Are Destroying Male Fertility and Metabolism New research is putting microplastics in a category most men still are not taking seriously: direct reproductive and hormone risk. A 2024 study detected microplastics in every human testicle examined, with polyethylene and PVC among the most common polymers. PVC is especially relevant because it’s often tied to chemical additives that can disrupt endocrine signaling. The broader body of evidence points to micro- and nanoplastics crossing barriers like the blood–testis barrier, driving inflammation and oxidative stress in the testes, and showing associations with impaired sperm quality and hormone disruption. The longevity move here is reducing overall load: better water filtration, less plastic food contact, no heating food in plastic, fewer packaged foods, and taking indoor dust and air quality seriously, especially for men thinking about fertility now or hormone resilience