Microplastic are everywhere -- even inside us. Here’s what to know

That water bottle you just drank from? It might be leaving behind tiny pieces of plastic smaller than the period at the end of this sentence. Scientists have discovered these microscopic plastic bits, called microplastics, are showing up everywhere - in our morning coffee, favorite foods, and even in the air we breathe. What’s more surprising? They’ve found these plastic particles in human blood, heart tissue, and even breast milk.