4 types of toothbrushes. 3 release microplastics. 1 doesn't. The math is that simple - and so is the choice. Here's the truth about what's in your bathroom: Plastic toothbrushes release up to 120 microplastic particles per use. A 2023 PubMed study (PMID: 38092338) confirmed you're ingesting 88,000 particles yearly. They enter your bloodstream, accumulate in organs, and never leave. Electric toothbrushes aren't better — same plastic bristles, same microplastic problem. Plus battery waste, replace