HAVING a large belly in middle age nearly triples the risk of developing dementia, a study released today found. Being overweight in midlife and beyond has long been linked to increased risk for disease such as stroke, diabetes and heart disease. But this is the first study to link excess fat to dementia and, the research found excess abdominal fat increased the risk even among those who were of normal weight overall. "Considering that 50 per cent of adults in this country (US) have abdominal obesity, this is a disturbing finding," said study author Rachel Whitmer of the Kaiser Permanente...