I don't believe Parkinson's is related to a lack of exercise or a lack of anything that the Wii would provide. From what I understand they usually don't even know what causes the disease in the first place.
She'd be better off learning a scripting language, that way she won't have to sit there filling in click boxes. Instead let the computer do the job, instead of what invariably happens under the Microsoft paradigm, helping the computer do the work.
She probably doesn't want to get laid off again. Filling in click boxes will give her the appearance of being busy and needed.
It's a naive, domestic operating system without any breeding, but I think you'll be amused by its presumption.