Phyllida Law, mother of actresses Emma and Sophie Thompson, has described the burden of caring for a parent stricken by dementia.
The 83-year-old, whose extensive roll-call includes appearances in the 1993 film version of Much Ado about Nothing and more recently as a guest star in Foyle's War, looked after her mother, Meg, for several years as the degenerative disease took hold.
In a case study for a new report from Alzheimer's Research UK, which focuses on the impact of dementia on the people who care for those with the disease, Phyllida describes the strain that caring for her Mother Meg put on her as her mother's health deteriorated.
The Alzheimer's Research UK report, "Dementia in the Family: The impact on carers", comes as new polling reveals that nearly a third (31%) of non-retired people aged 55 and over are worried that their family members will have to care for them in later life.
The report reveals how those looking after family members with dementia can become socially isolated and can find it difficult to cope.
"I wasn't as isolated as some people, and I was lucky because I had help from the people in my mother's village and from my two daughters, who also helped me financially.
"But caring for ma, you couldn't leave the house without taking her with you, so you did feel very stuck a lot of the time."
"The night time was particularly difficult: at dusk my mother would often think she was in the wrong house, or she would call for breakfast in the middle of the night, not knowing what time it was.
"When you're worn out because you haven't slept, you can be in danger of losing your temper, and that's very hard.
Through interviews with four families who are living with the condition, the report explores the stress and cost faced by carers, revealing how those looking after family members with dementia can become socially isolated.
Hilary Evans, chief executive of Alzheimer's Research UK, said: "For many people the festive season is a time to think about family, but for countless families across the UK dementia is taking a heavy toll, leaving people socially isolated and struggling financially.
"The experiences highlighted in this report will be recognised by people up and down the country who are dealing with the challenges of caring for a loved one with dementia."
Source : Sky News 15/12/15