How frontotemporal dementia, the syndrome affecting Bruce Willis, changes the brain – research is untangling its genetic causes
- Written by Fen-Biao Gao, Professor of Neurology, Gov. Paul Cellucci Chair in Neuroscience Research, UMass Chan Medical School

Around 55 million people worldwide suffer from dementia such as Alzheimer’s disease. Recently, the actor Bruce Willis was diagnosed with frontotemporal dementia, or FTD, a rare type of dementia that typically affects people ages...