Marisa Wexler, MS, senior science writer —

A diet low in carbohydrates may have cognitive benefits for older adults with mild cognitive impairment, a small study suggests. “Preliminary Report on the Feasibility and Efficacy of the Modified Atkins Diet for Treatment of Mild Cognitive Impairment and Early Alzheimer’s Disease” was published in the Journal…

A connection discovered between Alzheimer’s and the bacteria that cause gum disease suggests that improved oral hygiene may decrease the risk of developing the disorder, a study reports. The study, “Porphyromonas gingivalis in Alzheimer’s disease brains: Evidence for disease causation and treatment with small-molecule inhibitors,” was…