United Kingdom, Sept. 14 -- Emma Heming Willis says her children's lives have been turned "upside down" by the impact of Bruce Willis' dementia fight.

The model and influencer, 47, has been acting as a carer for her ailing Die Hard actor husband, 70, since he was diagnosed with frontotemporal dementia, and has now used her new book to describe how the condition is changing daily life for their young daughters, Mabel and Evelyn.

Emma said in her new book The Unexpected Journey: Finding Strength, Hope, and Yourself on the Caregiving Path: "The truth is, Mabel and Evelyn's daily lives were being turned upside down. For example, with FTD and other forms of dementia, some people become more sensitive to noise, which can cause distraction, co...