Health, Sports & Psychology
The science of nutrition and healthy eating
...centre in the brain called the hypothalamus and makes you feel hungry (Figure 1). [Described image] Figure 1 How the hormone ghrelin acts on the body If you measure ghrelin levels in the blood, they are high just before a meal and then drop steeply after eating. It may be ghrelin that causes your stomach to rumble when you are hungry. When your stomach is full, ghrelin...