There are many reasons to avoid getting diabetes, or to keep it controlled if you already have it: Higher risks for heart disease, stroke and for having a foot or leg amputation. But here’s another one: It’s a major risk factor for dementia.
While researchers are still investigating what causes that increased risk, one thing they do know is it’s linked to highs – and lows – in the body’s blood sugar levels.

“Whether it’s Type 1 or Type 2 diabetes, glycemic control is very important” for maintaining good brain health, said Rachel Whitmer, chief of the division of epidemiology at University of California, Davis and associate director of the school’s Alzheimer’s Disease Research Center. “This is another motivation to have good control.”
Good management of blood glucose levels is one of seven lifestyle changes people can make to support better heart and brain health, called Life’s Simple 7 by the American Heart Association. It’s a step that could potentially help more than 34.2 million people in the U.S. living with diabetes.