Quitting cigarettes sounds simple when you look at it from the outside. You decide to stop smoking, throw away your cigarette pack, avoid buying another one, and move on. But anyone who has tried quitting knows that it rarely works that way. You migh...

Have you ever studied something for hours, gone to sleep, and found that you could remember it more clearly the next morning? Or stayed up late preparing for an exam, only to struggle to recall information you were confident you k...