why did the queen die so suddenly

Queen Elizabeth II died suddenly but her cause of death was officially attributed to "old age," as indicated by her death certificate released after her passing. She was 96 years old and had shown signs of frailty related to aging, including mobility issues and a bout with COVID-19 earlier in 2022. There was no single acute medical event publicly confirmed as causing her death; rather, it was likely the cumulative effects of natural aging and related health decline that led to her passing peacefully at Balmoral Castle. Her frailty was compounded by factors such as age-related changes to her body, the physical challenges following her COVID-19 infection, and the loss of her husband the previous year. It is reported that she had an advance care plan to avoid aggressive treatments or hospital admission when her health declined significantly, which helped her die peacefully amidst family. Some reports mention additional health challenges like bone marrow cancer or a stroke but the official cause remains old age as a natural death.