adhd
"I'm 56 years old, and I was diagnosed with moderate to severe ADD when I was in my 30s.  I took Ritalin, then I weaned myself off of it 15 years ago because I seemed to function okay with my engineering job.  

Then, in June of 2009, corporate shut down the location where I worked and laid off nearly everyone, including me.  There were no jobs available, so I decided to go back to school and get a second degree.  This is where I discovered that I had nowhere near the focus that I needed to pull of 14 credits per semester.

My doctor prescribed Concerta, which really helped a lot, as long as it was before 1:00 PM.  He recently upped the dosage to 54 mg. Now, I can even handle the late-night homework sessions.  It's been a lifesaver for me."