They looked at sleep deprivation with creatine supplementation. And so they randomized people to either drink a placebo drink or drink 20 grams of creatine through the night. And they kept them awake all night and they had them do brain puzzle quizzes. And when the subjects were getting the 20 grams of creatine, they did way better on the brain puzzles, but they also complained about being tired a lot less. And so the conclusion is creatine is somehow acutely preventing your brain from suffering during sleep deprivation.