can't or won't, and are risking their health.

I feel so much better since I started using it. Good memory now. Can drive all day without getting sleepy.

My mom also uses one, and her 91-year-old mind is still sharp. I am convinced she would already be dead if she hadn't gotten diagnosed many years ago. She took to it right away (as did I), and can feel the difference if she goes a night without using it (same with me).