Radon on the radar

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Researchers have known for decades that exposure to radon may cause lung cancer, and that North Dakota and Iowa have some of the highest radon rates in the country. Could radon potentially cause other cancers? Researchers are exploring that possibility. Along with a high incidence of radon, North Dakota also has the highest rate in the nation of chronic lymphocytic leukemia, or CLL. No one knows what causes this cancer, which usually is found in people over age 70. It is not curable but is treatable for some patients. Could there be a correlation?

Humans don’t use as much brainpower as we like to think

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When it comes to brainpower, humans aren’t as exceptional as we like to think. For years, scientists assumed that humans devote a larger share of calories to their brains than other animals. Although the human brain makes up only 2 percent of body weight, it consumes more than 25 percent of the body’s energy budget. But a comparison of the relative brain costs of 22 species found that other animals have hungry brains too.

Little-known fruits contain powerful anti-inflammatory and anti-oxidant agents

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Research shows that five fruit species native to Brazil’s Atlantic Rainforest biome have bioactive properties as outstanding as those of blueberries, cranberries, blackberries, and strawberries. By investigating the presence of anti-aging nutrients that also work at the prevention of cancer, diabetes and Alzheimer’s, the study clears the path for the conservation and promotion of the genus Eugenia, which contains 400 species (some of them endangered) and presents huge potential in food and pharmaceutical industries.