Works for me, too, sometimes. But I also have arthritis, not that I would expect anyone to know that, but that's kind of my point. There's no cure for ADHD, and you definitely can't fix it if you "just" do one of the most common methods of mitigating symptoms. Oh, you have back pain? Just take a Tylenol. Just do some physical therapy. Just lie down for a bit. Just get a spinal fusion surgery.

Any of those might help, or maybe not.