| One hormone, ghrelin, which triggers appetite in humans, was found at higher levels in people who regularly underslept. |
| Among the topics for discussion are the roles of ghrelin and leptin in obesity. |
| It increases the amount of ghrelin, a stomach hormone that drives appetite, and also decreases the amount of leptin, which makes your body believe it is starving. |
| The appetite hormone ghrelin is produced mainly in the stomach and is thought to regulate body weight. |
| High cortisol levels during sleep, for instance, interfere with restfulness, and increase the hunger hormone ghrelin the next day. |
| They had unusual levels of leptin and ghrelin, both hormones involved in appetite. |
