Thursday, February 16, 2012

Blog #5: Can't Sleep? It May Be Affecting Your Memory


There has already been research confirming that people who have sleeping troubles are prone to have health problems including obesity, diabetes, heart disease, and/or depression, now there is a new condition added to the list: Alzheimer’s disease. Researcher Dr. Yo-El Ju or Washington University in St. Louis found that when the spinal fluid and brain was scanned using PET and MRI imaging, those who awoke more than five times per hour at night were more likely to have amyloid plaques in the brain—which is the beginning stages of Alzheimer’s disease. Participants in Dr. Ju’s study with worse “sleep efficiency” were reported to have had spent less than eight-five percent of the time in bed asleep; this was apparently known to be a preclinical Alzheimer’s.
Personally, I don’t think that lack of sleep is the main cause of a person having Alzheimer’s disease. It is known that risk factors also include family history and/or genes connected to the disease; I believe that lack of sleep is only a trigger to put the disease into action.  If Dr. Ju truly believes that the brain’s sleep-wake cycle interacts with the process of developing Alzheimer’s, maybe he should suggest a better way to ensure that people get an adequate amount of sleep to prove his theory. To do this, he could set up a study with people who get enough sleep and those who are lacking and then do another scan on the brains and see if there is actually some changes in the brain. Then again, this is all a tough task because to develop Alzheimer’s one must have the gene. It always goes back to genetics. The study is ongoing; there is still no clear connection to sleep and this disease.

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