Reproducing here part of an article that appeared on Rodale News.
5. Eating and drinking plastic
Toss your plastic water bottles into a recycling bin. According to a University of Cincinnati study, the chemical bisphenol A (BPA) found in hard plastic food and beverage containers can produce an estrogenlike molecule that mimics estrogen’s effects, creating a heightened risk for heart disease in women. Dr. Alvarez says BPA “could create too much estrogen or block the effects of its benefits.”
Do this. Replace # 7 plastic food containers and water bottles—that’s the type likely to contain BPA—with stainless steel, glass, or ceramic ones. If you’re not ready to banish other types of plastic containers, be sure you never heat them up, since this can cause other chemicals to leach into their contents.