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Body Image is Stronger Predictor of Health than Obesity |
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From EurekAlert! - Breaking News: In a study to examine the impact of desired body weight on the number of unhealthy days subjects report over one month, researchers at Columbia University Mailman School of Public Health found that the desire to weigh less was a more accurate predictor of physically and mentally unhealthy days, than body mass index (BMI). "Our data suggest that some of the obesity epidemic may be partially attributable to social constructs that surround ideal body types," said Peter Muennig, MD, MPH, Mailman School of Public Health assistant professor of Health Policy and Management. "Younger persons, Whites, and women are disproportionately affected by negative body image concerns, and these groups unduly suffer from BMI-associated morbidity and mortality." Older persons were also more likely to feel positively about their weight than were younger persons. However, in all models, perceived difference was a stronger predictor than was BMI of mentally and physically unhealthy days. The researchers emphasize that there is a large body of evidence suggesting that social stress adversely affects mental health as well as physical health. These processes are likely internalized, leading to a negative body image that also may serve as a source of chronic stress. "The data add support to our hypothesis that the psychological stress that accompanies a negative body image explains some of the morbidity commonly associated with being obese. Our finding that the desire to lose weight was a much stronger predictor of unhealthy days than was BMI further suggests that perceived difference plays a greater role in generating disease," said Dr. Muennig.
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