appetite

A new study looks at the effects of exercise on reducing one’s appetite. There are several hormones that help regulate appetite, but the in a study attention was payed to ghrelin and peptide YY. Ghrelin is the only hormone known to stimulate appetite whereas, peptide YY suppresses appetite. In the study, eleven male  students did three eight-hour sessions. During one session they ran for 60 minutes on a treadmill, and then rested for seven hours. During another session they did 90 minutes of weight lifting, and then rested for six hours and 30 minutes. During another session, the participants did not exercise at all. The participants filled out surveys indicating how hungry they felt. The researchers measured ghrelin and peptide YY levels at multiple points along the way. It was found that the treadmill activity caused ghrelin levels to drop … Read more