Nothing good ever comes from eating a meal when feeling stressed. Think about the physical state of your body while under stress. You are probably tense, with a knot in your stomach, and your mind on so many different topics you can not think straight. Now imagine how destructive it would be to add food to that equation. If your body is tense and clenched, it will not be relaxed and Able to accept food in a healthy way. Aside from physical discomfort, stress can cause many harmful side effects. Research shows stress can cause obesity and other weight-related conditions, such as Type 2 diabetes.