Study: Five Cups of Coffee a Day Keeps Alzheimer’s Disease at Bay

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Is there anything coffee can’t do? Studies have shown that the popular caffeinated beverage can reduce a woman’s chance of stroke, reduce the risk of breast cancer, and help women perform better in stressful situations. And according to a new study, coffee might also help ward off Alzheimer’s disease.

"We found that caffeinated coffee has some rather astounding additions to caffeine that provide protection against cognitive impairment,” said lead co-author Gary Arendash of the Florida Alzheimer's Disease Research Center.

Intrigued by previous research that showed pure caffeine improved cognition in mice with symptoms of Alzheimer’s, Arendesh and co-author Chuanhai Cao of the Byrd Institute conducted a follow-up study using Maxwell House, both regular and decaf, in place of laboratory caffeine. The results? The mice showed a sharp increase in GCSF, a growth protein known to build up the immune system and help laboratory animals recover from strokes. The GCSF also improved the mice’s memory in three important ways and researchers hope to identify the other ingredient in coffee that helps defend against Alzheimer’s.

So how much would coffee would a human need to consume to ward off Alzheimer’s? About five cups a day. Studies have shown that people who drink much coffee in their 40s and 50s have lower incidences of the disease later on.

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