I believe it. I even sought out medical advice on how to best deal with it all. I was given the usual recommendation of low-dose melatonin and light therapy.

However, my issue at the time was that I could never find a light with high enough lux values that I felt like I could trust. Plus, another issue with light therapy is that one can basically never stop for any moderate amount of time, and well, my ADHD makes that near impossible.

I honestly think I would have better success with sleep issues if I could just control my own schedule or have a flexible schedule, but that is not really a luxury most jobs can provide.