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High Blood Caffeine Levels in Older Adults Linked to Avoidance of Alzheimer's
Posted: Tuesday, June 5, 2012 6:16 PM
Joined: 12/6/2011
Posts: 3326

From Alzheimer's Daily News:

(Source: ScienceBlog) - Those cups of coffee that you drink every day to keep alert may have an extra perk. A recent study monitoring the memory and thinking processes of people older than 65 found that all those with higher blood caffeine levels avoided the onset of Alzheimer's disease in the two-to-four years of study follow-up. Moreover, coffee appeared to be the major or only source of caffeine for these individuals.

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Posted: Monday, June 11, 2012 8:45 AM
Joined: 3/28/2012
Posts: 13

 Another interesting quote about this from a different source...

High Blood Caffeine Levels in Older Adults Linked to Avoidance of Alzheimer’s Disease

ScienceDaily (June 4, 2012)
"Moderate daily consumption of caffeinated coffee appears to be the best dietary option for long-term protection against Alzheimer's memory loss," Dr. Arendash said. "Coffee is inexpensive, readily available, easily gets into the brain, and has few side-effects for most of us. Moreover, our studies show that caffeine and coffee appear to directly attack the Alzheimer's disease process."

Here is a citation for the original paper:

1.Chuanhai Cao, David A. Loewensteine, Xiaoyang Lin, Chi Zhang, Li Wang, Ranjan Duara, Yougui Wu, Alessandra Giannini, Ge Bai, Jianfeng Cai, Maria Greig, Elizabeth Schofield, Raj Ashok, Brent Small, Huntington Potter and Gary W. Arendash. High Blood Caffeine Levels in MCI Linked to Lack of Progression to Dementia. Journal of Alzheimer’s Disease, 30 (2012) 559%u2013572 559 DOI: 10.3233/JAD-2012-111781