what does bruce willis have disease

According to multiple sources, including, Bruce Willis has been diagnosed with frontotemporal dementia (FTD), which is a rare condition that usually shows up earlier than other forms of dementia. FTD occurs when there is nerve cell loss in the brains frontal or temporal lobes, affecting functions controlled by this area of the brain. The condition commonly causes communication difficulties like aphasia, which is what Willis was originally diagnosed with. It can also affect a persons behaviors, personality, emotions, and judgment. FTD may also affect motor skills, such as walking. Aphasia is a symptom associated with dementia and other illnesses that causes difficulty with communication, both in speaking and understanding written and spoken language.