A popular dietary supplement in the sports community has been shown to boost cognitive performance after a single dose – and the effects kick in within hours. A high single dose of creatine boosted processing capacity and short-term memory in as little as three hours of taking it. The research builds on previous studies pointing to the brain-boosting potential of creatine. How the researchers gathered their findings As part of the latest study, 15 test subjects were kept awake overnight and had to solve cognitive tasks during this time. Sleep deprivation leads to changes in brain metabolism th…