adhd
"I was 31 years old before I began taking Ritalin. I take a small dose, 10mg in the morning and 10mg early afternoon. I wish I had been prescribed this medicine years ago. I drive a truck for a living but I also do a lot of self study (audio and printed books) and Ritalin has greatly increased my productivity with the latter and safety with the former. I experience VERY few side effects. My mind used to wander quite often, I just thought I had an active imagination, but it was a problem. I have not lost my ability to imagine or abstract yet I have lost of tendency to wander aimlessly into unrelated thought. I have also lost my ability to get lost so often while driving!"