have a carbon in them. when we are exposed to a lot it can be absorbed the way bpas in plastic bottles. and they affect sex hormones and disrupt it. this study was upsetting in a sense there were 26,000 women. the women with the highest levels of these pfcs had early menopause. so you have heard about pfcs and the potential dangers but i never heard about this connection before. what are these in and what do we do to avoid them? how do you eliminate them from your life? or should you? >> it was not a causal study, they couldn't profit caused it, about it was an association. anything with stain removal, synthetic carpets, master kearpts, teflon pans. those are the things that have