Researchers at Mount Sinai Medical Center say that diabetics who take insulin plus a diabetes pill have a lower risk of developing Alzheimer's disease than diabetics who take insulin alone. The investigators studied the brains of 124 people with diabetes who had died and 124 non-diabetics of comparable age, sex, and severity of dementia. They found that the diabetics who were treated with both insulin and a diabetes pill had 80 percent fewer amyloid plaques than people who used insulin or a...