In testimony to the U.S.-China Economic and Security Review Commission, Eswar Prasad details challenges for both economies and proposes effective policy responses. Watch video of the testimony Â» (Prasadâs discussion begins at 20:20 minutes)
Polyphenol: A kind of chemical that (at least in theory) may protect against some common health problems and possibly certain effects of aging.Polyphenols act as antioxidants. They protect cells and body chemicals against damage caused by free radicals, reactive atoms that contribute to tissue damage in the body.olyphenol: A kind of chemical that (at least in theory) may protect against some common health problems and possibly certain effects of aging.
Polyphenol - Biology. 1  Both natural phenols and the larger polyphenols play important roles in the ecology of most plants. 2  Release and suppression of growth hormones such as auxin. 3  UV screens to protect against ionizing radiation and to provide coloration (plant pigments). 4  Deterrence of herbivores (sensory properties).