Angioedema: Angioedema is a severe swelling beneath the skin, especially of the face and the limbs. Sometimes, rashes also appear along with the swelling. Other symptoms are swelling of the eyes or eyelids and lips, stomach cramps, and difficulty breathing.
Emotions, like fear and love, are carried out by the limbic system, which is located in the temporal lobe. While the limbic system is made up of multiple parts of the brain, the center of emotional processing is the amygdala, which receives input from other brain functions, like memory and attention.
When a 2004 study asked participants to think about a favorite food, resulting functional MRI images showed that three primary areas of the brain lit up: the hippocampus, insula and caudate. The hippocampus is in the temporal lobe and filters sensory data to store it in short-term or long-term memory. The insula, which is located on either side of the brain, helps to control your social emotions by interpreting what physical state you are in. The caudate nucleus, which is in the striatrum in the center of the brain, helps to control the body's dopamine reward system. Dopamine, a feel-good hormone, also is produced during gambling, sex and drug activity.