Is reading Scientific American good for you? Several articles in January educated readers about various health matters. "New Light on Medicine," by Nick Lane, described how light could activate compounds for treating certain ailments. A feature proposing a revised food pyramid put regular exercise at the foundation of a healthful lifestyle. Even housework counts--that activity helped to reduce the risk of dying for the elderly by almost 60 percent in one study, noted in News Scan's Brief Points. In response, Richard Hardwick sent an offer via e-mail that may be--okay, we'll say it--nothing to sneeze at: "As the occupant of one of Europe's major dust traps, I feel I can sustain a whole army of elderly duster-wielding would-be immortals. I offer access to my dust on a first-come, first-served basis; vacuum cleaner supplied, but applicants must bring their own dusters." Other reactions to the fitness of the January issue follow.
This article was originally published with the title Letters.