Some historians point out that the fall of the Roman Empire is to the metal “lead”. Romans had used lead materials in their food storage vessels and to line the channel used for transporting water. Since lead is a known neurotoxic that is proven to affect mental performance, researchers think that ancient Romans lost some of their mental capacities & abilities to make intelligent choices, thus causing their empire demise. Lead crosses the blood- brain barrier and can cause dementia and Alzheimer’s, and learning disabilities.
Having a big belly in your 40s can boost your risk of getting Alzheimer’s disease or other dementia decades later, a new study suggest. It’s not just about your weight. While previous research has found evidence that obesity in middle age raises the chances of developing dementia later, the new work found a separate risk from storing a lot of fat around the abdomen. Even people who weren’t overweight were susceptible. That abdominal fat, sometimes described as making people apple-shaped rather than pear shaped, has already been linked to a higher risk of developing diabetes, stroke and heart disease.