According to the BBC News, "Failure to control type 2 diabetes may have a long-term impact on the brain, research has suggested."

Severe hypoglycaemic episodes - hypos - occur when blood sugar levels drop dangerously low. A University of Edinburgh team found they may lead to poorer memory and diminished brain power. The study, based on 1,066 people with type 2 diabetes aged between 60 and 75, was presented at a conference of the charity Diabetes UK.

The volunteers completed seven tests assessing mental abilities such as memory, logic and concentration. The 113 people who had previously experienced severe hypos scored lower than the rest of the group. They performed poorly in tests of their general mental ability, and vocabulary.

Lead researcher Dr Jackie Price said: "Either hypos lead to cognitive decline, or cognitive decline makes it more difficult for people to manage their diabetes, which in turn causes more hypos.

"A third explanation could be that a third unidentified factor is causing both the hypos and the cognitive decline."

We will continue tracking this research. Because diabetes affects so many people, a direct correlation between it and brain function has staggering implications:

Diabetes now affects nearly 24 million people in the United States, an increase of more than 3 million in approximately two years, according to new 2007 prevalence data estimates released today by the Centers for Disease Control and Prevention (CDC). This means that nearly 8 percent of the U.S. population has diabetes.

In addition to the 24 million with diabetes, another 57 million people are estimated to have pre-diabetes, a condition that puts people at increased risk for diabetes. Among people with diabetes, those who do not know they have the disease decreased from 30 percent to 25 percent over a two-year period.

Read BBC article.

Read more on diabetes.

Labels: Diabetes, TBI, TBI research, traumatic brain injury