AP - The head of a prominent cancer research institute issued an unprecedented warning to his faculty and staff Wednesday: Limit cell phone use because of the possible risk of cancer.

AP - Microsoft founder Bill Gates and New York Mayor Michael Bloomberg are pooling their piles of money to pour $375 million into a global effort to cut smoking.

AP - Viagra's effect in women has been disappointing, but a new small study finds those on antidepressants may benefit from taking the little blue pills. The research involving 98 premenopausal women found Viagra helped with orgasm. But the benefits did not extend to other aspects of sex such as desire, researchers report in Wednesday's Journal of the American Medical Association.