Nun Study — Language Skills Determine Alzheimer’s Risk
Several media sources recently came out with results of a study of 38 Catholic nuns who donated their brains to science. In this nun study at Johns Hopkins University School of Medicine, researchers compared nuns with normal cognitive functioning at the end of their lives with those with cognitive impairment, including Alzheimer’s disease (AD).
Here are the results:
- 10 had Alzheimer’s
- 10 had asymptomatic Alzheimer’s
- 5 had mild cognitive impairment
- 13 had no cognitive deficits or brain lesions
Asymptomatic Alzheimer’s is when there are AD typical plaques and tangles in their brains, but the person still has unimpaired mental faculties throughout their lives.
What was the difference amongst these nuns? Those that had excellent language skills when they were younger diminished their chances of AD later in life. The researchers were able to obtain essays of some of the subjects when they were in their late teens or early twenties when they joined the convent. Grammatical complexity was unimportant, but those that were “dense” in ideas were less likely to develop AD or even mild impairment. The researchers do not know why superior language ability appears to be protective against dementia and AD, but suspect it has something to do with forming more synapses early in life.
Lead author of the study was Dr. Juan C. Troncoso of Johns Hopkins University. In Wired Science, he states, “It’s the first time that we show in humans that such a complex cognitive activity like idea density or language is connected with a neurodegenerative disease. Now with this kind of paper, we have shown that we should focus not only on what we can see in the brain, but also on what we cannot see, the connection between cognition and pathology. Our suspicion is that this is just the tip of the iceberg — there’s so much that we still don’t know about neural disease and the genesis of dementia.”
Related blog post: Fear of Alzheimer’s. Click here.
Know anyone with Alzheimer’s? Advanced Russian adaptagens might help with focus and mood. Click here to learn more.

When I was a very young girl, one of the things I remembered about my aunt was that I’d pinch the skin on the back of her hand and the skin would not go back down. I thought that was so hilarious and I would keep doing it over and over. Try this “Skin Elasticity Test.”
Flat belly secrets! Flat belly in two weeks! Flat belly diet! Lose belly fat! It’s all over the media. I subscribe to the 
We’ve all experienced it — insomnia. Cherries may be the answer to insomnia. It seems that age plays a role in the change of sleep habits. It is generally thought that:
As a University of Wisconsin alumna, I receive a quarterly publication, On Wisconsin. In the Spring 2009 issue, an article caught my attention: “Age, Order, and Autism.” Is there a link between autism and older parents as well as birth order? I have given birth to two healthy sons, but I often worry about the children they might have, my grandchildren, particularly since they both live in California. California seems to have a higher incidence of autism, although one theory is that it’s because of the way the data are collected.




