I'm a type 2 diabetic and this morning I saw first hand how negative emotions can affect our bodies.

Upon waking, I measured my blood sugar as usual. It was actually lower than it had been recently and I was very pleased. About 5 minutes later, something totally uncalled for happened that caused me to get very angry very fast. When I had calmed down somewhat about 15 minutes later, I decided to take my blood sugar. It was 50 points higher than it had been only 20 minutes earlier, even though I had eaten nothing as of yet for the morning. My liver seems to have done a glycogen dump in response to the stress. (I had eaten too many carbs over the holidays, so it probably had a good glycogen store.)