Coffee, Keeping You Smarter Longer

Coffee Cuts Alzheimer's Disease Risk

Tampa, FL (June 4, 2012) Those cups of coffee that you drink every day to keep alert appear to have an extra perk – especially if you're an older adult. 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.

My parents drink a lot of coffee, and it seems to be working for them...

The study shows this protection probably occurs even in older people with early signs of the disease, called mild cognitive impairment, or MCI. Patients with MCI already experience some short-term memory loss and initial Alzheimer's pathology in their brains. Each year, about 15 percent of MCI patients progress to full-blown Alzheimer's disease. The researchers focused on study participants with MCI, because many were destined to develop Alzheimer's within a few years.

Blood caffeine levels at the study's onset were substantially lower (51 percent less) in participants diagnosed with MCI who progressed to dementia during the two-to-four year follow-up than in those whose mild cognitive impairment remained stable over the same period.

No one with MCI who later developed Alzheimer's had initial blood caffeine levels above a critical level of 1200 ng/ml – equivalent to drinking several cups of coffee a few hours before the blood sample was drawn. In contrast, many with stable MCI had blood caffeine levels higher than this critical level.

Coffee is one of those things that some significant number of people are always looking for excuses to ban.  There have been countless busted studies on the possible hazards of coffee and caffeine, including pancreatic cancer and breast cancer, but they always vanish upon more work.  In the meantime, evidence continues to accumulate that it does have some net benefits.  Another recent study shows shows that coffee is also active against gout.

Regular consumption of coffee reduces the risk of skin cancer.

Coffee

AFP - daily consumption of coffee reduces the risk of basalioma, the skin cancer the most common, according to a study published Monday in the U.S. which seems to confirm previous research conducted on mice. The authors of this study, women who drink more than three cups of coffee a day are in danger of developing a basalioma (or squamous basacellulaire) reduced by 20% compared to those consuming little or not at all. For the men - who seem less benefit from this protective effect without the reasons to be explained - consume more than three cups of coffee daily reduced by at least 9% their risk of developing skin cancer.

The research presented at a conference of the American Association for Cancer Research in Boston (Massachusetts, North East) shows that the more we consume more coffee reduces the risk of basalioma. The study authors have themselves expressed surprise at these results. If a relationship was observed in mice between caffeine as an ointment and reducing the risk of skin cancer, epidemiological studies have not clearly shown the same link. "Our study indicates that coffee consumption may be an important option to help prevent the skin cancer," said Fengju Song, one of the authors. 

With nearly one million new cases diagnosed each year basalioma United States, dietary factors such as drinking coffee daily, even with modest protective effects, could have a major impact on public health, the researchers believe.

They believe these results warrant further research to better understand the relationship between coffee consumption and a lower incidence of skin cancer. This research was made with data from two large studies, including one focused on 72,921 participants between 1984 and 2008 and the second with 39,976 people followed from 1986 to 2008.