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Title : Blueberries: Health Benefits, Facts, Research
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Blueberries: Health Benefits, Facts, Research

cranberries and antioxidant activity

it is believed that antioxidants help protect the body against the damaging effects of free radicals and the chronic diseases associated with the aging process. Fresh fruits, including blueberries, and vegetables contain many of these natural antioxidants such as vitamins C and E. Blueberries contain 14 mg of vitamin C and 0.8 mg of vitamin E per 1 cup of blueberries. In addition, blueberries contain anthocyanins and phenolic compounds which may also act as antioxidants. Based on data from the USDA Human Nutrition Research Center on Aging (Boston, MA), blueberries are among the fruits with the highest antioxidant activity. Using a test called ORAC (Radical Absorbance Capacity Oxygen), researchers have shown that a serving of fresh blueberries provides more than many other fresh fruits and vegetables antioxidant activity.

cranberries and aging

In a laboratory of the Center for Human Nutrition Research , neuroscientists discovered that feeding blueberries to laboratory rats related loss decreased with age in his mental capacity, a finding that has important implications for humans.

In one study, Jim Joseph, director of the neuroscience laboratory at the Center for Human Nutrition Research (CNRH), fed extractions-the equivalent cranberry of a human eating one cup of blueberries a day to mice and then he passed through a series of motor skills tests.

found that mice who consumed blueberries are better than their control group counterparts in motor behavioral learning and memory behaved, and noticed an increase in exploratory behavior. When examined their brains, it was found a marked reduction in oxidative stress in two brain regions and better retention of neurons signal transmission compared to control mice.

The compound that appears responsible for this neuron protection, anthocyanin, also gives blueberries their color and might be the key blueberry antioxidant and anti-inflammatory component. Blueberries, along with other colorful fruits and vegetables, test high in their ability to subdue free radicals. These free radicals, which can damage cell membranes and DNA through a process known as oxidative stress, are blamed for many of the dysfunctions and diseases associated with aging.

These findings could become increasingly important as the population ages in the United States. It is projected that by 2050, over 30% of Americans will be over 65 and have the decreased cognitive and motor function that accompanies old age. Joseph is currently testing the effects of blueberries on humans. Preliminary results show that people who ate a cup of blueberries a day have performed 5-6% better on motor skills tests than the control group.

cranberries and Health compounds

Researchers at Rutgers University in New Jersey have identified in blueberries called proanthocyanidins that promote urinary tract health and reduce the risk of infection by preventing bacteria adhere to the cells lining the walls of the urinary tract.

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