Hungry again? Perhaps you didn't run far enough, or frequently enough. The Scientific American reports that, contrary to the widely held conviction that the more calories we burn, the more calories we want, exercise makes the stomach grow less fond of food. Hunger, it turns out, is a complex sensation, determined in part by neurons which send signals to the brain telling it
that you're either hungry or sated. Those neurons get their message
from hormones, including insulin and leptin. The magazine reports that researchers found that "physical activity
reorganizes the set point of nutritional balance through
anti-inflammatory signaling."
To find out how the researchers did it, read more in the Scientific American.