A friend sent me this article today from the Atlantic, discussing the results of a recent “longitudinal study” that studied the impact of blood sugar on dementia. But first I had to look up what a longitudinal study was! Here’s what I learned from the Journal of Thoracic Disease:

“Longitudinal studies employ continuous or repeated measures to follow particular individuals over prolonged periods of time—often years or decades. They are generally observational in nature, with quantitative and/or qualitative data being collected on any combination of exposures and outcomes, without any external influenced being applied. This study type is particularly useful for evaluating the relationship between risk factors and the development of disease, and the outcomes of treatments over different lengths of time. Similarly, because data is collected for given individuals within a predefined group, appropriate statistical testing may be employed to analyse change over time for the group as a whole, or for particular individuals.”

This particular study followed 5,189 people over 10 years. The findings were that people with high blood sugar had a faster rate of cognitive decline than those with normal blood sugar. The Atlantic article goes on to discuss other studies with similar findings and includes a discussion about the higher risk of dementia in people with diabetes. It’s an easy read, so be sure to check it out.

I’m thrilled to see that the word is getting out about the dangers of sugar. I only hope younger people will listen, as the damage begins in the brain far before you notice any signs of cognitive impairment.  And sugar is a tricky one – it is in so many things, and is incredibly addictive. My brain lights up any time I ingest sugar.  If I wasn’t convinced of the harm it does after ready research study after research study, I’m sure I’d still be reaching for a box of Hot Tamales (one of my former favorites) or that chocolate chip cookie present at nearly every conference I’ve attended the last few years.  I therefore feel a responsibility to help spread the word, and I hope you will, too!