The amount of food people eat tends to be profoundly influenced by evolutionary psychology, a study led by researchers from the University of Birmingham found.
"People want to convey positive impressions to strangers," explained Helen Ruddock, the psychology researcher at the University of Birmingham who led the project."Selecting small portions may provide a means of doing so and this may be why the social facilitation of eating is less pronounced among groups of strangers.
Our tendency to eat more food when we are with people we know may be a vestige of the lives of our prehistoric hunter-gatherer ancestors, the research team suggested. Like their ancient counterparts, modern humans tend to share a food source. The inner mechanisms that once abetted the foraging of our ancestors may continue to exert profound influence on our dietary behavior today.
This is called an"evolutionary mismatch"—humans are hardwired to unconsciously employ a foraging strategy that would have been vital to the survival of their prehistoric predecessors, but which mostly just causes excess caloric intake today.lessWomen, for example, were found to eat less food in the company of men, regardless of whether those men were strangers or loved ones. Obese or overweight people could eat around 18 percent less around others.
"Findings from previous research suggest that we often choose what to eat based on the type of impression that we want to convey about ourselves," Ruddock said."Evidence suggests that this may be particularly pronounced for women eating with men they wish to impress and for people with obesity who wish to avoid being judged for overeating."
Buddhist monks eat during the Pchum Ben festival at a pagoda in Phnom Penh on September 16. People change their eating habits when in the presence of others.
France Dernières Nouvelles, France Actualités
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