Cortisol is a hormone your adrenal glands produce that helps govern your circadian rhythm (your body’s internal clock).

Hormones like leptin, which helps controls appetite, ghrelin ... that can influence how hungry you might feel when you wake ...

with many of us simply not feeling hungry when we wake up. But should we be concerned by our lack of appetite in the mornings, or are some of us just built differently? “Whether people feel ...