People who are dementia free, but have two parents with Alzheimer’s disease, may show signs of the disease on brain scans decades before symptoms appear, according to a recent study published in the journal Neurology. During the study, 52 people free of dementia between the ages of 32 and 72 underwent several kinds of brain scans. Participants were split into four groups of 13; those with a mother with Alzheimer’s disease, a father, or no family history of the disease. Compared to the other three groups, the study found that people with both parents who had Alzheimer’s disease showed more severe abnormalities in brain volume, metabolism and five to 10 percent increased brain plaques in certain regions. The results of the study suggest that there may be genes that predispose individuals to develop Alzheimer’s pathology, depending on whether one or both parents have the disease. To read more about this study, click here.