A Thought for 2012

Posted by:strictlycoffee onDecember 30, 2011

Coffee may taste good and get you going in the morning, but what will it do for your health?

A growing body of research shows that coffee drinkers, compared to nondrinkers, are:

  • less likely to have type 2 diabetes, Parkinson’s disease, and dementia
  • have fewer cases of certain cancers, heart rhythm problems, and strokes

It protects your heart: Moderate coffee drinkers (1 to 3 cups/day) have lower rates of stroke than noncoffee drinkers, an effect linked to coffee’s antioxidants. Coffee has more antioxidants per serving than blueberries, making it the biggest source of antioxidants in American diets. All those antioxidants may help suppress the damaging effect of inflammation on arteries. Immediately after drinking it, coffee raises your blood pressure and heart rate, but over the long term, it actually may lower blood pressure as coffee’s antioxidants activate nitric oxide, widening blood vessels.

It diverts diabetes: Those antioxidants (chlorogenic acid and quinides, specifically) play another role: boosting your cells’ sensitivity to insulin, which helps regulate blood sugar. In fact, people who drink 4 or more cups of coffee each day may have a lower risk of developing type 2 diabetes, according to some studies. Other studies have shown that caffeine can blunt the insulin-sensitivity boost, so if you do drink several cups a day, try mixing in decaf occasionally.

Your liver loves it: OK, so the research here is limited, but it looks like the more coffee people drink, the lower their incidence of cirrhosis and other liver diseases. One analysis of nine studies found that every 2-cup increase in daily coffee intake reduced liver cancer risk by 43 percent. Again, it’s those antioxidants-chlorogenic and caffeic acids-and caffeine that might prevent liver inflammation and inhibit cancer cells.

It boosts your brain power: Drinking between 1 and 5 cups a day (admittedly a big range) may help reduce risk of dementia and Alzheimer’s disease, as well as Parkinson’s disease, studies suggest. Those antioxidants may ward off brain cell damage and help the neurotransmitters involved in cognitive function to work better.

 It helps your headaches: And not just the withdrawal headaches caused by skipping your daily dose of caffeine! Studies show that 200 milligrams of caffeine-about the amount in 16 ounces of brewed coffee-provides relief from headaches, including migraines. Exactly how caffeine relieves headaches isn’t clear. But scientists do know that caffeine boosts the activity of brain cells, causing surrounding blood vessels to constrict. One theory is that this constriction helps to relieve the pressure that causes the pain, says Robert Shapiro, M.D., Ph.D., associate professor of neurology and director of the Headache Clinic at the University of Vermont Medical School.

“There is certainly much more good news than bad news, in terms of coffee and health,” says Frank Hu, MD, MPH, PhD, nutrition and epidemiology professor at the Harvard School of Public Health.

But (you knew there would be a “but,” didn’t you?) coffee isn’t proven to prevent those conditions.

Researchers don’t ask people to drink or skip coffee for the sake of science. Instead, they ask them about their coffee habits. Those studies can’t show cause and effect. It’s possible that coffee drinkers have other advantages, such as better diets, more exercise, or protective genes.

So there isn’t solid proof. But there are signs of potential health perks. Enjoy your New Year celebrations, and don’t feel too guilty about reaching for the coffee the next morning.

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Comments

    Angel Wemmer

    As Charly Sheen puts it, “WINNING!”

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