BEING overweight increases the risk of many serious health conditions, including strokes, cancer, diabetes and hypertension. Less well known, perhaps, is the link between being overweight or obese and the health of our brain. Research has shown that a higher body mass index and mid-life obesity are both linked to increased risk of dementia. Some evidence also indicates that obesity and Alzheimer’s disease cause similar brain dysfunctions. MATTEO DE MARCO, Lecturer, Neuroscience of Dementia, University of Sheffield ANNALENA VENNERI, Chair Professor, Translational Clinical Neuropsychology, University of Sheffield Our latest research has now shown that being overweight or obese negatively affects…