Stress
When you are stressed, you do sweat. Thus, this is known by all that stress brings sweat that leads to body odor. As per researchers, the body odor during the situation of stress is different than regular body odor of yours. This is the reason why dogs can catch you in the midst of various people if you have done something wrong. The logic says that when you are stressed you get a body odor of fear. Dogs have a very strong smelling sense that catches this odor of fear, and thus, the culprit can be caught. Experts have also stated that stress does not altogether changes the odor of your body. It just adds another smell of fear in your odor that may not be noticed by the humans but can be caught by animals with strong smelling sense such as dogs.
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