You may have noticed your parent is forgetting things, or repeating the same story. Normal aging can cause some forgetfulness. It is normal to have some trouble learning new material or needing more time to remember it. But normal aging does not lead to dramatic memory loss. Such memory loss is due to other diseases.How can you tell if the changes you’re seeing are part of the normal aging process or if it’s a symptom of something more serious? Dr. Gail Risse explains what to look for, and the steps you can take to get your loved ones the help they may need.