Memory Study Courses - Do They Work

Their has been a bit of talk of late by the so call professionals stating memory exercises may not provide any benefit to the human mind, keep in mind they don't know for sure. After much research and from personal experience I believe this not to be true. I am a firm believer that the mind is like a muscle and if you exercise it, you will have a stronger sharper mind. Recently after studying a program created by Dr Jonathan Parker called "Decoding The Abundance Mindset" I did a review for the program, you can read that review at http://memorytechniques.org. To me it just does not make sense that exercising the mind with memory games or studying mnemotechnics won't have a positive effect on the mind.

I would love hear to some thoughts on the matter. Believer it or not, respectfully what's you view?