Dioxins are organic chemicals that comprise a family of ubiquitous environmental contaminants. Technically speaking, the dioxins of potential toxicological concern are polychlorinated dibenzo-p-dioxins (PCDDs). They are related, both structurally and toxicologically, to polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs). Structures of generic PCDDs, PCDFs, and PCBs are shown in Figure 1. Due to their structural and toxicological similarity and to avoid confusion, all three related groups of chemicals are considered to represent "dioxins" for the purposes of this article. Specific chemicals belonging to this family are referred to as congeners. Collectively, there are more than 200 dioxin-related congeners, and each possesses unique toxicological and chemical properties.

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Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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