Middle-aged obese people have ‘lower dementia risk’

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