University of Kansas study finds BPA in plastic containers may trigger migraines. Learn how this common chemical affects your brain and what numbers to avoid ...

These numbers, enclosed in a triangular recycling symbol, range from 1 to 7 and signify ... including those containing Bisphenol A (BPA), a chemical used to harden plastics. BPA can mimic estrogen ...

Holding onto old plastic food containers? Here are five signs they may be unsafe for your health and should be replaced immediately.