Stress ReliefPhoto:ShutterstockHowever, until recently, the mechanism of the biochemical connection between stress and food intake was practically unstudied. Now, American scientists can say with confidence: attacking food to satisfy hunger is associated with certain hormones. And the culprit is ghrelin, produced in the hypothalamus and stomach. It is responsible for controlling a person's eating behavior, appetite and eating habits. Meanwhile, adrenaline and norepinephrine affect ghrelin. The higher the stress, the more intensely ghrelin begins to work. By the way, not so long ago, American experts found out: . This is what causes obesity. Diet drinks are no less dangerous, also provoking the appearance of extra pounds.