Researchers from South Korea looked at the blood concentration of seven different persistent organic pollutants in 1,099 Americans. They found the most POPs in the people who lost the most weight over 10 years. Levels were lower in people who had not lost weight or who had gained weight.

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Researchers from Cardiff University in Wales examined the spice frankincense for its benefits in treating joint pain. They showed that an extract of Boswellia frereana, which is a rare species of frankincense, inhibits the production of key inflammatory molecules. These inflammatory molecules cause the breakdown of the cartilage tissue, which results in arthritis pain. By stopping this process, frankincense can ease the pain.

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Scientists just found that melatonin works in a unique way to fight against mitochondrial dysfunction. One of the reasons the mitochondria begin to fail is because a hole can develop in its inner membrane. This hole decreases the mitochondria’s ability to produce energy. These scientists found that your body has produce enough of a particular enzyme to plug these holes. And melatonin helps maintain normal levels of this enzyme.

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Researchers looked at three studies involving 199 people (mostly women) who had a cold. One-third of these patients had allergies. Each of these patients took zinc acetate until their cold symptoms disappeared. The researchers found that it didn’t matter if the participants had allergies or smoked. It also didn’t matter how bad the cold was at the start of the study. The zinc shortened the cold by two to three days.

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Researchers found that when participants drank three or more cups of coffee a day, their liver enzymes were lower than those of participants who did not drink any coffee. They didn't find any differences between participants who drank regular or decaf coffee.

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