WHY STRESS MAKES YOU HUNGRY AND IF YOU SHOULD GIVE IN

Also known as the hunger hormone, ghrelin levels rise as stress increases. Studies show that in mice, as ghrelin levels increase, depression and anxiety related behaviors decrease, indicating that ghrelin is sometimes produced to prevent depression and anxiety. Of course you shouldn't starve yourself, but cutting back on food intake will increase ghrelin (hunger), decreasing depression and anxiety. So don't give in to those stress cravings. Its your body trying to avoid worse feelings than hunger. There are some health conditions however, that may alter this effect. 

http://www.utsouthwestern.edu/newsroom/news-releases/year-2008/hunger-hormone-increases-during-stress-may-have-antidepressant-effect-researchers-report.html