Drinking two cups of hot chocolate a day may help older people keep their brains healthy and their thinking skills sharp, according to a recent study from the American Academy of Neurology.
The study, which was published in the online issue of Neurology, the medical journal of the Academy, involved 60 people with an average age of 73 who did not have dementia. The participants drank two cups of hot cocoa per day for 30 days and did not consume any other chocolate during the study. They were given tests of memory and thinking skills. They also had ultrasounds tests to measure the amount of blood flow to the brain during the tests.
Of the 60 participants, 18 had impaired blood flow at the start of the study. Those people had an 8.3-percent improvement in the blood flow to the working areas of the brain by the end of the study, while there was no improvement for those who started out with regular blood flow.
The people with impaired blood flow also improved their times on a test of working memory, with scores dropping from 167 seconds at the beginning of the study to 116 seconds at the end.
Half of the study participants received hot cocoa that was rich in the antioxidant flavanol, while the others received flavanol-poor hot cocoa. There were no differences between the two groups in the results.
“More work is needed to prove a link between cocoa, blood flow problems and cognitive decline,” said Paul B. Rosenberg, MD, of Johns Hopkins School of Medicine in Baltimore, who wrote an editorial accompanying the study. “But this is an important first step that could guide future studies.”
For more information on the study, click here.