If you have diabetes, weight loss may slow brain health decline. A small study that was done on people with diabetes split individuals into either a counseling group with diet and exercise components or a control counseling group. “The counseling group lost more weight and achieved greater gains in cardiorespiratory fitness than their peers in the control group. And, in a sign that weight loss might protect against diabetes-related brain damage, the control group had smaller volumes of gray matter and more white matter disease by the end of the study. Smaller volumes of brain tissue and the presence of white matter disease are linked to cognitive decline.” The researchers explained that the brain uses energy from the body, mainly from blood sugar, in order to function, but a person with diabetes has fluctuating blood sugar levels which may damage the brain over time. Researchers believe weight loss may help stabilize those levels.