Perfect Score on Working Memory Test — While Exhausted With a Headache

Last night, while I had a headache, was extremely tired and couldn't focus at all on learning or work, I had the idea to play a game that tests working memory called Dual N-Back. I set it to 2-back and midway through thought I'd screwed up no less than 2 or 3 times — because I was that out of it. Then I saw the 100% score. I immediately turned it off to solidify this result. It's a small result, but opened my eyes about how subtly and smoothly these subs can work, regardless of how you feel.