People often watch movies and aggressive commercials dealing with anger and revenge while dieting.
Scientists at the American Northwestern University and University of California found that people who are dieting are more prone to anger and irritability. The attitudes of people on diet were compared with those of people who preferred to eat whatever they liked.
People who counted calories and made healthy eating choices were losing temper and behaved aggressively, most likely due to psychological pressure caused by the attempt to resist the desire for food and maintain the self control that has to be exerted during dieting, researchers explained in a study published in the Journal of Consumer Research. They concluded that people were prone to commercials and movies dealing with anger and revenge while dieting.