Eating too much could raise risk of memory loss

Doctors say cutting calories can keep brain sharp

ORLANDO, Fla. – A new study finds that overeating could double the risk of memory loss among people who are 70 years and older.

Researchers at the Mayo Clinic followed 1,200 senior citizens and found that those who ate the most were twice as likely to develop memory problems. It also raised their risk of dementia and Alzheimer's.

Doctors aren't sure why overeating can lead to memory problems. This study didn't take into account the kind of food these people ate. It just looked at how much they ate.

Doctors say cutting calories and eating healthy may be a simple way to prevent memory loss.