* Selenium may reduce the risk of advanced prostate cancer by nearly two thirds. Researchers discovered this by looking at toenail parings which reveal long term selenium intake from men with advanced prostate cancer (The Lancet, 1998; 352: 713).
* Deferoxamine, long considered to be the only effective iron chelation therapy for thalassemia major, has severe side effects. Researchers found it can contribute to the body's iron burden to the point where it greatly increases the risk of cardiac disease and early death (The New England J of Med, 1998; 339: 417-23).
* A German radio station is keeping its listeners tuned in and mosquitoes turned off by beaming out a high frequency tone while broadcasting. Radio Salue's new playlist drives mosquitoes mad but doesn't interfere with its human listeners (The Lancet, 1998; 352: 634).