A new retrospective study shows a significant association between reduced rate of knee- and hip- replacement revision and treatment with hormone replacement therapy (HRT). A good candidate theory for prospective trial to confirm, or refute.
The American Council on Science and Health (ACSH) was among the first organizations in the United States to formally endorse tobacco harm reduction (THR) as a way to get smokers to be less risky with their behavior, and when smoking cessation was not successful.