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If medical scientists sometimes find it hard to recruit enough volunteers -- especially blacks -- to participate in research studies, there may be a good reason, a new University of North Carolina at Chapel Hill study shows. A surprisingly high percentage of Americans asked -- almost 80 percent of blacks and 52 percent of whites -- were suspicious that they might be used as "guinea pigs" without their consent
The total package of good physical and mental health is elusive for most American adults, according to new research. Two-thirds of U.S. adults participating in a 1995 survey reported some degree of physical or mental infirmity that kept them from being completely healthy. The remaining third of the survey group was split into nearly equal percentages of completely healthy and completely unhealthy individuals, say the study's authors.
People who find it hard to lose all the weight they want or that their doctors recommend should take heart, a North Carolina scientist says. New research suggests that losing even modest amounts of weight can pay off in better health. The study showed for the first time that shedding excess pounds decreases activity of a key enzyme known to play a central role in high blood pressure. Less body weight translates into lower blood pressure, the study found, and hence lower risks for cardiovascular disease, stroke, kidney disease and other health problems.