A small clinical trial reported this week found that older women who confined their eating to roughly an eight-to-nine-hour daily window scored better on certain thinking tests after six months than women eating across a typical twelve-hour window. Both groups lost about the same amount of weight.
Two things about that sentence need to be stated immediately, because the gap between what was measured and what headlines will claim is wide. The outcome was performance on specific cognitive tasks, not a diagnosis, a brain scan or a dementia rate. And the work was presented as a conference abstract at NUTRITION 2026, the American Society for Nutrition's annual meeting. Abstracts there are selected by an expert committee but have not generally gone through the peer review required for journal publication.
