Everything from drug therapies to drum beating, macrobiotics, aromatherapy and pancakes is always a "promising" therapy. Hell, I could say that reading DW books is a 'promsing therapy for Alzheimer's.'
Promising until the point when 99% of these things are proven that they don't work.
Let me know when one of these actually passes legitimate scientific research trials that pass the strictest international peeer group reviews . I can then let my Alzheimer's afflicted family members know about it.
Until that time, all of these things are just speculation at best.