For me, the stress has manifested itself in the following ways, I have high-blood pressure, I have fatty liver, I have high cholesterol, I'm overweight, my eyesight is horrid, I grind my teeth while I sleep which has resulted in broken teeth, I have one gold crown and another chipped tooth and have a really messed up "sleep" schedule.
I have chronic back problems, allergies and get frequent colds.
All of this due to the stress of working long, hard hours. Keep in mind that I have a diet which is better than the typical American's. I've cut a lot of sugar out of my lifestyle.