Family spokesperson Jim McGrath who announced the statement did not indicate the nature of Bush's illness but said that she had had a series of recent hospitalisations. She has consulted with her family and doctors and decided not to seek additional medical treatment.
A source close to the Bush family tells ABC News she is suffering from heart and respiratory failure.
Hager, an anchor on NBC's "Today" show, said on the program Monday morning that Bush is resting comfortably with family.
Bush also remarked on her longtime marriage to her husband in the magazine, writing: "I am still old and still in love with the man I married 72 years ago". Barbara, wife of former President George H.W. Bush, served as first lady during his presidency from 1989 to 1993.
In fact, Mrs. Bush's condition is top of mind for workers at Molina's Cantina on Westheimer, where the Bushes have been customers for years. "She's the best grandma anybody could have ever had ... or have", she said. Along the journey, they had six children. "Barbara Bush has a character that is as big, inspiring and iconic as Texas".More news: Study Finds Over 3300 Android Apps Have Been Tracking Kids
Bush married George H.W. Bush on January 6, 1945.
When George and Barbara Bush met while she was still in high school, she never expected to become the matriarch of a growing political dynasty. Bush wrote to her in the fall of 2016 after her husband passed away from cancer.
United States television channel CBS appear to have wrongly reported the death of former First Lady Barbara Bush, who is in fact still alive but gravely ill.
Bush is the only living wife of one former President and the mother of another former President.
What a testimony. Through the good times and the bad (Barbara and George lost a daughter, Pauline, to leukemia at the age of 3), they have kept the spark burning. According to McGrath, Bush was concerned more for her family than herself. "And she's worked tirelessly on that project", Beach said.