Stress has a lot of damaging effects in our body. For example it also causes high blood sugar, because it puts your body in a fight or flight mode. High blood sugar gives rise to higher insulin levels, which inhibits leptin and gives you insulin resistance and thus you can develop symptoms of the metabolic syndrome, if not full blown T2 diabetes. Cortisol is also correlated with high levels of ghrelin, the hunger hormone.

This is why if you're stressed ... you can develop diabetes, heart disease, obesity and who knows what else. Stress is an evolved tactic to escape short term dangers. But humans are not designed to be stressed all the time.

I have a close friend that developed diabetes following a period of high stress due to his small business going broke.

Take care of your health first. And sleep 8 hours per day.