The Stress Response
How it Happens
Hormones are chemicals that tell certain parts of your body to spring into action. Your adrenal glands make the ones that help your body prepare to fight or run from danger (adrenaline, noradrenaline, cortisol). When those stay at a high level for a long time, they can weaken your bones and your immune system, mess with your sleep, and make you lose muscle.
Stomach Pain
”Butterflies” are one thing, but if you’re really stressed, you may have nausea and your tummy might hurt. This is natural, because your body may slow or stop digestion during the fight-or-flight response to help you focus.
Bathroom Trouble
If stress closes down your digestive system too often, it can cause diarrhea or constipation and affect your body’s ability to take in nutrients. There also seems to be a link between stress and irritable bowel syndrome, which can cause belly pain and cramping, as well as constipation and diarrhea.