Skip to content

    Diabetes Health Center

    Font Size
    A
    A
    A

    Lower Blood Sugar Levels May Aid Memory: Study

    Blood glucose levels on the higher end of the normal range linked to poorer results on memory test

    WebMD News from HealthDay

    By Robert Preidt

    HealthDay Reporter

    WEDNESDAY, Oct. 23 (HealthDay News) -- Higher blood sugar levels may increase the risk of memory problems, even in people who have blood sugar (glucose) levels within the normal range, a new study suggests.

    The study included 141 people, average age 63, who did not have diabetes or pre-diabetes -- which is sometimes called impaired glucose tolerance. The study did not include people who were overweight, who drank more than three-and-a-half servings of alcohol a day, or had been diagnosed with memory and thinking problems.

    The investigators tested the memory skills and checked the blood sugar levels of the participants. In addition, brain scans were used to measure the size of their hippocampus, a part of the brain that plays an important role in memory.

    People with lower blood sugar levels did better on the memory tests. For example, on a test where participants were asked to recall a list of 15 words 30 minutes after hearing them, those with lower blood sugar levels remembered more of the words than those with higher blood sugar levels.

    The researchers also found that hippocampus size was larger in people with lower blood sugar levels than in those with higher levels, according to the study published online Oct. 23 in the journal Neurology.

    "These results suggest that even for people within the normal range of blood sugar, lowering their blood sugar levels could be a promising strategy for preventing memory problems and cognitive [thinking] decline as they age," study author Dr. Agnes Floel, of Charite University Medicine in Berlin, Germany, said in a news release from the American Academy of Neurology. "Strategies such as lowering calorie intake and increasing physical activity should be tested."

    Today on WebMD

    Diabetic tools
    Symptoms, diagnosis, treatment, and more.
    woman flexing muscles
    10 strength training exercises.
     
    Blood sugar test
    12 practical tips.
    Tom Hanks
    Stars living with type 1 or type 2.
     
    kenneth fujioka, md
    Video
    Can Vinegar Treat Diabetes
    Article
     
    Middle aged person
    Tool
    jennie brand miller
    Video
     

    Prediabetes How to Prevent Type 2 Diabetes
    Article
    type 2 diabetes
    Slideshow
     
    food fitness planner
    Tool
    feet
    Slideshow