Recent Episodes
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Dark Chocolate and the Aging Clock
If you love dark chocolate, keep your love affair because we just keep finding ways it's good for us. A new study uncovered a chemical called theobromine in dark chocolate that may slow biological aging. No, milk chocolate doesn't have it; your chocolate must contain at least 50 percent cacao solids.
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Cancer in the US
The American Cancer Society's newest report on cancer in the US shows cancer is the second leading cause of death. That may sound bad, but there's progress. Cancer is still a killer but during the past 10 years, cancer death rates began to fall about 1.5% percent every year.
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A Unique Knight
Among the remains of medieval Spanish knights at a castle just east of Madrid, scientists found a uniquely shaped skull. It was unusually narrow and long, measuring 9 inches long by four inches wide compared to a normal 5.5 by 5.5 inch skull.
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The War in Your Gut
Everyday a war is waged inside our guts, between the bacteria and the phage or viruses that want to kill them. They're each genetically evolving in a race to outdo the other both on earth and in space. We'll get to that in a minute.
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Learning from Roman Sewers
There are many ways for us to learn about history -- poring through old books, excavating archeological sites, or for some scientists, by studying old sewers. We can learn how people disposed of their waste, what they ate, and which diseases plagued them.