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This Issue Brief reviews the federal role in setting U.S. water fluoridation policies, discusses current federal recommendations for water fluoridation, and summarizes the extent of water fluoridation across U.S. states.

KFF Health News’ Navigating Aging columnist, Judith Graham, spent six months this year talking to older adults who live alone by choice or by circumstance — most commonly, a spouse’s death. They shared their hopes and fears, challenges, and strategies for aging solo. KFF Health News and The John A. Hartford Foundation held a 90-minute interactive, virtual event called “Going It Alone.” The event featured frank conversation with five of the people featured in Graham’s series.