• What Is Alzheimer's Disease?

• Symptoms and Diagnosis

• Treatments

• Basic Research

• Translational Research

• Clinical Research

• Participating in Research

• Frequently Asked Questions

• Videos

• MedlinePlus for More Information

Family History

Family history is another risk factor for Alzheimer's disease. Early-onset familial Alzheimer's disease, a rare form of Alzheimer's that occurs between the ages of 30 and 60, is inherited. It is caused by mutations, or changes, in certain genes.