A high body mass can protect against dementia

According to new research, there is at least one benefit to being obese at middle age.

Which, of course, contradicts the findings of earlier studies:

Obese middle-aged people are nearly 30% less likely to develop dementia than those of a healthy weight, a study has revealed.

It also found that underweight people of the same age were a third more likely to develop the condition than those who had a healthy body mass index (BMI).

The new research published in the The Lancet Diabetes And Endocrinology journal contradicts findings from earlier studies, which suggested that obesity leads to an increased risk of dementia.