Hello Grade 6,
Welcome to your libguide. There is lots of information here, especially on the web sites of the foundations that work hard to support members of our communities who have these disorders, researchers, doctors, and caregivers. Take your time and work slowly through the links. Also, remember that your families, friends and neighbours may have or know someone who has one of the these disorders. For example, my mother has Alzheimer's and you can ask me directly if you want to find out information about daily life with this illness. First-hand accounts are research, too! We call them primary sources.
Good luck. Email Ms. Jones or me with questions.