Body

By Harriet Barovick, Michelle Derrow, Richard Diaz, Tam Gray, Daniel Levy, Lina Lofaro, Michele Orecklin, Flora Tartakovsky and Chris Taylor

HOLY COW! We may envy celebs' homes, style and dates, but not their corpuscles. Fearing mad-cow disease, the FDA last week barred anyone who had visited Britain for a total of six months between 1980 and 1996 from donating blood. Many stars shot at least four British-based films in that time, which could put them over the limit. The at-risk:

--Tom Cruise --Glenn Close --Nicole Kidman --Mel Gibson --Robert Downey Jr. --Andie MacDowell --William Hurt --Sigourney Weaver