Bruce Willis has been diagnosed with frontotemporal dementia (FTD) last month
Bruce Willis previously battled aphasia
Emma talked about raising two children while dealing with her husband's condition
FTD is the most common form of dementia for people under 60
Currently, there are no treatments for the disease
The family is hoping to raise awareness about the disease and its impact on individuals and their families
Willis retired from acting in March 2022 after receiving an aphasia diagnosis