Earlier studies have shown that some of the compounds cause hyperactivity and thinking deficits in laboratory animals.

VOA: special.2010.05.26

But some studies have suggested they could because of a suspected link between inflammation and diabetes.

VOA: special.2009.05.19

Studies have found a link between the disease and some chemical products.

VOA: special.2009.04.07

So Mozaffarian and his colleagues studied the studies,eight of them, in which some participants ate less saturated fat and more polyunsaturated fats, the kind of fats that are in fish,nuts, and vegetable oils.

VOA: standard.2010.03.25

Researchers from Brigham Young University analyzed 148 studies with a total of some 300,000 participants, tracking their social relationships and whether they survived to the end of their particular study, which averaged about seven years.

VOA: standard.2010.07.29