Telegraph.co.uk | Middle-age spread may protect against dementia Telegraph.co.uk Dr Doug Brown, Director of Research and Development at Alzheimer's Society, said: “While the evidence on body weight and dementia is unclear, we know that people can make positive lifestyle choices to keep their brains healthy by taking regular ... Being overweight 'reduces dementia risk' Being overweight may not increase dementia risk and could protect against ... Being Too Slim at Midlife May Boost Dementia Risk |