For Abby Williard, school always felt like a slog...As she researched sluggish cognitive tempo, or SCT, online, the symptoms seemed just right: a problem with focusing was there, too, but also daydreaming, slow or “foggy” thinking, and a general lack of energy...But SCT is not an officially recognized diagnosis. It’s currently what’s called a clinical construct — a term used in psychology to define a group of behaviors.