Expert Dr. William A. Van Horn explains what is Lewy Body Dementia, the 4 cardinal features of LBD, and what you can do to maximize quality of life for your family and your loved one suffering with LBD . Don’t give up on your family member with Lewy Body Dementia because some doctor says there is nothing else we can do. There are many things you can do to dramatically improve the quality of life for your loved one who has LBD. With proper medication, your loved one with LBD should sleep all night, wake up fresh in the morning, experience pleasure, and their behavior is under control enough that they can have a wonderful relationship with you.