Research shows a potentially effective Primary Prevention strategy against Alzheimer’s

Among the most unwelcome effects of aging is cognitive decline. There are few things scarier than dementia and Alzheimer’s disease. Dementia starts in old age or later middle age and is characterized by gradual memory loss, confusion, personality and mood changes, and impaired thinking and even physical function.

Of people who develop dementia, 60 to 65% of them have Alzheimer’s disease, affecting about 26 million people all over the world. The disease is characterized by the death of brain cells, neurofibrillary tangles, and the buildup of a plaque called beta amyloid in a patient’s brain. Because of how it destroys the memory, the disease creates a heavy emotional and practical burden for the patients who suffer from it, and for their loved ones who must provide care. It is the sixth leading cause of death in the United States today. Its causes are not understood very well, and 90% of cases are sporadic and not linked to a family history. Age is the greatest risk factor for Alzheimer’s.

Once Alzheimer’s begins to kill off brain cells, the process cannot be stopped or reversed by any therapies yet known. Primary prevention – doing everything possible to keep the disease from developing in the first place – is the most important step a person can take to avoid suffering from this tragic disease.

Fortunately there is a pleasurable way to carry out that primary prevention.

Studies have shown that one effective method of prevention can be found in a moderate coffee habit of 3–5 cups per day.

There is evidence to suggest that caffeine as well as other elements in coffee (such as polyphenols/CGAs) may play a part in improving cognitive function.

“We are not saying that moderate coffee consumption will completely protect people from Alzheimer’s disease. However, we firmly believe that moderate coffee consumption can appreciably reduce your risk of Alzheimer’s or delay its onset.”

— Chuanhai Cao, a neuroscientist at the USF

On one hand, a study published by the Journals of Gerontology in 2016 says that caffeine is one of the major keys to preventing Alzheimer’s Disease. In the study, middle-aged women who reported having about five to six 8-oz. cups of coffee or black tea every day were 36% less likely to develop Alzheimer’s. Since the results were the same for both those drinking tea and coffee, the study correlated the results to the effects of caffeine. Proponents of coffee for the prevention of Alzheimer’s disease have pointed specifically to caffeine’s effects on the central nervous system and its ability to cross the blood-brain barrier.

A 2013 laboratory experiment by Jang et al. showed that the beneficial effects of coffee were a result of more than just caffeine, however. In this study, rats that had been given scopolamine (a drug that causes cognitive impairment) were then given instant decaffeinated coffee. They were then judged against a control group on their ability to complete a water maze. The results of the test showed that the group that was given decaffeinated coffee had better cognitive function than the one that wasn’t. But as many other coffee and health related studies have demonstrated, coffee’s health benefits are about more than just caffeine. An earlier laboratory study had also tied both caffeic acid and chlorogenic acid – the CGAs found in coffee – to neuroprotective qualities. Researchers did note that caffeic acid’s protective properties were the stronger of the two, but that chlorogenic acid made a difference as well.

The unfortunate news is that antioxidant therapies for Alzheimer’s disease alone have not been shown to be effective in stopping the progression of the disease once it has started. Though scopolamine is a good tool for simulating cognitive difficulties, there are differences in rodent and human brains that have not yet been bridged in experiments. Rats do not develop the same beta amyloid deposits that are characteristic of Alzheimer’s disease.

The good news is that a lifelong coffee habit can improve your chances of never developing Alzheimer’s in the first place. Eskelinen concluded in a 2010 analysis of multiple epidemiological studies that a 3 to 5 cup of coffee per day habit at mid-life predicted a 65% lower risk of Alzheimer’s and dementia in late life. That means starting to drink more coffee today markedly helps your chances of living into your golden years Alzheimer’s free.

As a bonus, short-term benefits of coffee include better memory, mood, vigilance, and overall cognitive function, particularly if you are enjoying a coffee like Purity, which is high in antioxidants and free of pesticides, mold, and mycotoxins.

The key is to fight Alzheimer’s before it starts – and to also enjoy coffee’s cognitive benefits along the way.

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