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A government task force and other health groups recommended that women aged 21 to 65 should get a pap smear every three years.

Aging is not for the squeamish: skin sags, joints ache and hearing might start to go. And many seniors have trouble sleeping, which can lead to other health problems.

In a critical assessment of the United Nations body she has headed since 2006, Chan described wasteful overlap with other health financiers and said the WHO needed to concentrate on areas where it can make the most impact.