A new study suggests repeated exposure can help produce resistant antibodies
Rats whose DNA changes with grooming, fetuses less damaged by cocaine than tobacco, and more in this week's round up
Our Sex Files columnist details how sci-fi writers, artists and engineers represent women. Final verdict? "I, for one, welcome our...
The columnist tackles that age-old question: Who's more likely to need a postcoital snooze?
A new dermatological treatment pulls the cells from newborns' foreskins and injects them, Botox-style, into aging faces
New research suggests transsexualism is indeed a genetic trait. But how conclusive is the study?
While treating a patient for leukemia, doctors inadvertently cured his case of AIDS
In the microscope-aided photography competition, these embryos stand out
Scientists discover that breakups can lead to neurochemistry changes by dashing voles' romantic relationships
Plenty of new developments since our columnist last weighed in
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