Word: cancerous
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...Roman Chelbowski, lead author of the current study and a medical oncologist at the Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, disagrees. He says the rapid decline in cancer rates was due not only to an overall drop in breast-cancer risk, but also to the withdrawal of excess estrogen, which may actually have served as a treatment for tiny, preclinical breast cancers. "When you change from a high- to a low-estrogen environment, it's like giving breast cancer treatment," he says. "These are preclinical cancers that are below the level of detection, and that accounts...
...That is a reasonable and biologically plausible explanation for why we might be seeing a more precipitous drop in breast cancer than we might expect from the normal lead time for reduction of malignancies," says Dr. Jonathan Berek, chair of obstetrics and gynecology at Stanford University School of Medicine, who was not involved in the study...
Berek notes that while breast cancers do generally grow for a decade or more before becoming detectable, cancer is a tricky disease that constantly tests our expectations. "Nobody understands this disease that well, and maybe what this study is telling us is that the biology of these estrogen-dependent cancers is not quite what people thought...
...although the academic back-and-forth over what caused an undeniably good health trend - a reduction in breast cancer - might seem superfluous, the study does reaffirm an important message for women: Hormone use at menopause does increase the risk of breast cancer, so estrogen and progestin should be used for the shortest possible time, only to relieve menopausal symptoms. "This study isn't an indictment of hormone use at menopause," says Berek. "It just means that like all medicines, hormones have their benefits and risks, so they have to be used very judiciously and for a short time...
...Tide activists—who in an interview called the speech a “well-crafted” defense of an “obsolete” technology—were unsatisfied with Leer’s defense of coal. “Clean coal is like healthy cancer. I don’t believe it exists.” said Andrew Stern, Vice President of Citizen Advocates for Renewable Energy, which installed wind turbines from which Harvard buys energy credits. However, many audience members said they respected Leer’s pragmatism. “His basic message...