Why some people with ADHD self-medicate — including me

There was one class in college that I just could not seem to get through without falling asleep. It was a 3 p.m. class, and the subject matter was super interesting. But something about that time of day always came with a crash.

I wasn’t sleeping well (I also had an 8 a.m. class) and I’d always been prone to what’s called “intrusive sleep,” which is a documented symptom…