Scientists Discover a Surprising Link Between Obesity and Dementia Survival

A large study found that people who are overweight or obese when diagnosed with dementia have a significantly lower risk of death than those at a normal weight. A higher body weight at the time of a dementia diagnosis may be linked to longer survival, according to a large study of older Americans. Researchers found that this association was consistent across different racial and ethnic groups, and was not explained by other factors such as smoking or alcohol use.