ISLAMABAD: Quenching your thirst during the hot weather with a glass of water can help make your brain work faster, scientists have found.
According to a study published in the journal Frontiers in Human Neuroscience,the researchers discovered that people who drank a pint of water before conducing mental tasks had reaction times that were 14% faster than those who did not have drink.
And, with the current heatwave in mind, the effect was most pronounced among those who were thirsty before doing the task. The findings underlines how even mild dehydration can impact on a person’s mental performance, the scientists say.
Dr Caroline Edmonds, a psychologist at the University of East London who led study, said: “Reaction time seemed to be most affected by water, particularly if the people were thirsty.
“It might be because when you are thirsty, it diverts your attention away from the task at hand. This would be important for people at work or who need to concentrate.
“There are also hormonal theories about how dehydration affects the brain and it is possible that water is fixing an imbalance there too.”Around 80 per cent of the brain is water, so it is clearly important to make sure it gets enough.”
Among adults, however, there results are less clear. Those attempting complex rule learning tasks actually performed slightly worse after drinking a glass of water.
However, adults had far faster reaction times if they had drunk some water.