I wanted to share an interesting article here that my wife shared with me. The folks at Music & Memory are working with nursing homes to deliver customized playlist on iPods to patients with Alzheimer's or other forms of dementia. As you will see from the video below and the referenced article, they are achieving some amazing results.
They have a donations page online where you can help for as little as $30 (for songs) or $49 (for an iPod Shuffle), or $98 (for 2 iPods).
Here is a video from their site showing the success they have had with a man named Henry who suffered from dementia for a decade and barely spoke to anyone until the Music & Memory iPod program was setup at his nursing home.