Some popular weight loss and workout supplements contain a chemical called BMPEA that includes an ingredient nearly identical to amphetamine, according to a new study. Dr. Pieter Cohen of Harvard Medical School and Daniel Fabricant of the Natural Products Association…
By PBS NewsHour
The second of our interview outtakes with inventor/author/futurist Ray Kurzweil.
In one of America's fastest-growing but least-regulated industries, consumers face a dizzying array of herbal treatment options. But studies about the effectiveness of these products are inconclusive, and the ingredients listed in labels are sometimes misleading. Paul Solman reports.
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