Your Health: Sep. 2, 2002

HOLD THE HERBS New studies raise fresh questions about the safety and efficacy of two dietary supplements. A six-week trial of ginkgo, touted to enhance memory, found no improvement in memory, learning or concentration among healthy people with no neurological symptoms, compared with a similar group taking placebo capsules. A separate study of colon-cancer patients revealed that St. John's wort, used to fight depression, interferes with the potentially beneficial effects of irinotecan, a widely prescribed chemotherapy drug.

ANTHRAX DOUBLE DUTY Researchers may have uncovered an inventive way of both battling anthrax and detecting its microscopic spores. By studying a virus that...

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