Grape Juice May Enhance Memory and Performance in Busy Adults
A recent study suggests that a daily glass of grape juice may help improve memory function and performance in people with stressful lifestyles.
Participants in the study included 25 healthy working women between the ages of 40 and 50 with pre-teen children. The women were given 355 ml of Concord grape juice or a placebo daily over the course of twelve weeks. During this time they were completed a series of tests that assessed their cognitive performance. One of these tests was a 25-minute driving simulator challenge during which they were asked to match the speed and direction of a lead vehicle.
The researchers found that drinking the grape juice was associated with significant improvements in immediate spatial memory and driving performance when compared with the placebo. They also found that participants in the grape juice group consistently maintained better performance even after they stopped drinking the grape juice.
Researchers from the University of Leeds in the UK conducted the study. It was presented at the biennial International Conference on Polyphenols and Health, which took place from October 27 to 30 in Dijon, France.
The researchers for this study believe that the high content of polyphenols in grape juice are probably responsible for the beneficial effects seen here. Polyphenols are powerful antioxidants that fight free radicals in the body that can lead to many common diseases. Previous studies have linked polyphenol intake with a variety of health benefits, including helping with weight management, and reducing inflammation.
Polyphenols can be found naturally in many foods, including honey, a variety of fruits and vegetables, red wine, chocolate, tea, certain oils and a many types of grain. A healthy and balanced diet can help ensure you consume an adequate amount of polyphenols.