Time-restricted eating, such as eating only during an eight to ten hour window, is best known for weight loss, blood sugar reduction and even heart-health benefits. But a new pilot study from Rutgers University explores another possible benefit. A small clinical trial suggests eating during fewer hours each day may reduce risk of dementia. The researchers reported to the American Society for Nutrition that weight loss alone may ward off some age-related cognitive impairment, but reducing food intake to within nine hours of the day and stopping eating four hours before bedtime showed additional benefits. After twelve weeks, participants in the time-restricted diet had significant improvement in several cognitive tests and showed fewer errors on memory and learning tests.