I appreciate what you said, and I don't assume bad intent. However, I would urge you to be careful with the words that you choose, especially when it comes to

I appreciate what you said, and I don't assume bad intent. However, I would urge you to be careful with the words that you choose, especially when it comes to a topic like this. I have no doubt that your product will make those with dementia happy and having actual tangible photos is easy for anyone to use. Seeing photos of loved ones or just photos in general even if they don't recognize the people anymore. Anyone will get happy looking at a picture of beautiful child. We have an iPad for my mom just for that purpose and my siblings will go through pics with my mom all the time. She no longer recognizes my wife or my son (she confuses my son with me now all the time, and she talks to the iPad thinking that she is communicating with the person on the screen). But no doubt seeing those pictures makes her happy in that moment. But dementia is an extremely cruel disease, worse than any other because it robs people of their humanity over many years and leaves families with huge bills and extreme guilt. Photos won't help. Exercise doesn't help. Neither will omega fatty acids, various other pills or diets, 40 Hz light therapy, etc. It will continue to progress until the person is only alive in the clinical sense, but will be nothing like what their family remembers. Photos make people laugh and smile, but that's not help in any sense more than watching a funny tv show would help.