The obesity rate in American has remained at 34% during the past five years, but will continue to grow until reaching 42%, Harvard medical researchers conclude.
The study builds off a 2007 report that an individual's risk of becoming obese increases 50% if a friend of his becomes obese.
Researchers believe this phenomenon is fueling the obesity rate in the United States, which is projected to increase over the next 40 years.
Is obesity contagious? Harvard medical researchers examined the influencing factors of becoming obese. "We found there is some baseline risk of becoming obese based on the friends you have," Allison Hill, a graduate student at Harvard and the Harvard- Massachusetts Institute Technology Division of Health Sciences and
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