 oxygen better. It supports memory in people that are sleep-deprived. It's been shown to help people add numbers quicker and for longer periods of time without mental fatigue. Get this study. Just five days, five days of eight grams of creatine-supported mental tasks in subjects that were getting rapid-fire questions. Scientists were asking them math questions and science questions over and over and over, and they found the folks on creatine didn't fatigue as quickly mentally. So this is amazing stuff.