Former editor of The Lady and younger sister of London Mayor Boris Johnson, Rachel Johnson, said she wanted to move in "straight away" to a St Albans residential home she visited yesterday to talk about her career.

Fonthill House residents aged between 72 and 102-years-old were treated to stories from the journalist, who recently took part in the BBC's 'Famous, Rich and Hungry' challenge for Comic Relief, where she lived on just £1 a day.

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Of her recent challenge to eat seven or more portions of fruit and vegetables a day, she said this was something "for the rich." She revealed the Comic Relief experience was "all a process of discovery" and that "what I felt leaving all that was that we are very lucky, but Britain is full of people who are very unlucky."

Of her visit to the residential home, she said: "I want to move in straight away. I’ve seen the bathrooms, the bedrooms and the art room, I’ve had two sausage rolls and I am gutted I didn’t get my hair done here rather than in London."

Audience members also listened to the 48-year-old discuss her life growing up with Boris and her other siblings in Brussels, a "childhood without TV" as well as her career as editor of The Lady magazine following stints at the Financial Times and column-writing for the Daily Telegraph and Evening Standard.

Nick Allhusen, director at the Cassius Drive care home, said: "It was eye-opening to have Rachel come in and reveal her experience of the Comic Relief challenge, as well as to hear how she broke and maintained a career in journalism over so many years.

"Our residents had endless questions for her and I'm thrilled that she was so taken with Fonthill."

The visit was part of the houses' Current Affairs club, where guest speakers visit residents to speak about news gathering. Other speakers have included ITV News presenter Mary Nightingale, British travel writer Kari Herbert and the American-born British journalist Janet Daley.