Sipping a cup of sugar-sweetened coffee not only kick-starts a day, but also improves memory retention and attention span, a latest research from scientists at the University of Barcelona in Spain has revealed.
The study found that caffeine, a nervous system stimulant, when taken along with sugar boosts brain function more than it does separately.
In fact, researchers believe that both caffeine and sugar enhance the effect of each other on cognitive skills such as learning, concentrating, and retrieving.
Previous studies have also established that coffee improves short-term memory and speeds up reaction time by acting on the brain’s prefrontal cortex.
Study findings
Findings of the study revealed that coffee affects specific brain regions involved in memory and concentration due to which the brain operates more efficiently and actively post caffeine and sugar boost.
It was also found that volunteers who drank coffee with sugar reported a reduced activity in the bilateral parietal cortex and the left prefrontal cortex, the two parts of the brain responsible for attention span and memory.
“The two substances improve cognitive performance by increasing the efficiency of the two areas of the brain responsible for sustained attention and working memory,” the Daily Mail quoted researcher Dr Josep Serra Grabulosa as saying.
“The brain is more efficient under the combined effect of the two substances, since it needs fewer resources to produce the same level of performance than when volunteers took only caffeine, glucose or water,” Serra Grabulosa added.




