Scientist Cheek found that there is a clear link between body mass index (BMI, a method of measuring fat and thin by the ratio of height to weight) and memory loss  In the experiment, participants with higher BMI performed worse
A medical school reported that the hippocampus is located deep in the brain and is responsible for learning and memory functions.Middle-aged people with high abdominal fat content have a smaller hippocampus than thin people.
 Cheek's research results show that obesity may cause brain atrophy and memory decline