Fat People Get Less Dementia

Still not enough reason for me not to lose the 30 extra pounds I'm carrying. I'd have to gain a hell of a lot more weight to  fall into this category.
http://www.alzheimersweekly.com/2015/04/fat-people-get-less-dementia.html
Very obese people (BMI greater than 40 kg/m2) are 29% less likely to get dementia than people in the normal weight range. The unexpected results are according to new research published in The Lancet Diabetes & Endocrinology journal.