Diabetes Archive

Factors that harm your heart may be bad for your brain.

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During middle age, factors that leave you prone to a heart attack or stroke — high blood pressure, diabetes, and smoking — may raise your risk of developing dementia a quarter-century later, new research suggests. All three things affect your vascular (blood vessel) health.

The recent study, which adds to the growing evidence linking heart health to brain health, has elements that make findings especially reliable, says Dr. Gad Marshall, a Harvard Medical School assistant professor of neurology. "For understanding the vascular risks for dementia, this study is as close to definitive as we can get," he says.

Research we're watching

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Close to a third of Americans say they use artificial sweeteners on a daily basis. Popular examples include aspartame (Equal, Nutra­Sweet), sucralose (Splenda), and stevia (Truvia, Pure Via). They're all available in packets and are also added to soda, yogurt, and other foods.

But do these sugar substitutes actually help you lose weight? New research suggests they do not. In fact, these zero-calorie additives may have the opposite effect — and possibly even increase the risk of high blood pressure, diabetes, and heart disease.

All women, regardless of risk, should focus on preventing diabetes.

Can a blood test act as a crystal ball, alerting you to a health hazard that may await you down the road? Researchers say they've found one that may do just that for diabetes. It could help predict whether women — even ones with no other signs of the disease — may develop the condition in the future.

In a study published online June 21 by the Journal of Clinical Lipidology, researchers showed that in many cases, a test called lipoprotein insulin resistance (LPIR) did a better job, at predicting which women would go on to develop diabetes, says Dr. Samia Mora, one of the study authors and associate professor of medicine at Harvard Medical School. In many cases, it was more accurate than traditional measures — such as

News briefs

Many Americans may be living with the precursor condition to type 2 diabetes without even knowing it, according to a report released July 18, 2017, by the CDC. The National Diabetes Statistics Report found that more than 84 million people in the United States likely have prediabetes — higher-than-normal blood sugar levels.

Prediabetes can turn into full-blown type 2 diabetes — meaning the body doesn't respond to insulin, a hormone that helps cells absorb blood sugar for energy. Type 2 diabetes increases the risk for vision loss; heart disease; stroke; kidney failure; amputation of toes, feet, or legs; and even early death. The report found that almost one in four people with diabetes is undiagnosed.

Mounting evidence suggests that eating nuts and seeds daily can lower your risk of diabetes and heart disease and may even lengthen your life.

If your idea of healthy eating was formed a few decades ago, it may be hard to shake the notion that you should avoid nuts, which are high in calories and fat. But new evidence has overturned that assumption. In fact, a recent analysis of the nation's eating habits and health outcomes suggests that eating too few nuts and seeds is associated with an increased risk of dying from cardiovascular disease or diabetes.

For that study, in the March 7, 2017, Journal of the American Medical Association, researchers from the Tufts Friedman School of Nutrition Science and Policy relied on a model that used data from scores of observational studies on diet and health, including the National Health and Nutrition Examination Surveys, which provided detailed information on Americans' eating habits over the decade ending in 2012. They estimated that in 2012, over 300,000 deaths from heart disease, stroke, or type 2 diabetes — about 45% of all deaths from those conditions — were associated with eating either too much or too little of 10 nutrients.

Millions have prediabetes and don't know it. Here is why it's important to find out and act to lower your diabetes risk.

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An estimated one out of three American adults is prediabetic, which means blood sugar levels are higher than normal but below the threshold for type 2 diabetes. Yet 90% of these people do not realize they are in this dangerous gray zone.

"You are not going to have symptoms for prediabetes," says Dr. David Nathan, director of the Harvard-affiliated Massachusetts General Hospital Diabetes Center. "Instead, you or your doctor should determine if you have any of the common risk factors, get your blood sugar levels checked to determine if you have prediabetes, and then make the necessary lifestyle changes you need to stop type 2 diabetes from occurring."