Arguably emotion is just the perception of underlying chemicals. I agree, it's too difficult to separate the two, and it's hardly necessary for treatment. Add t

Arguably emotion is just the perception of underlying chemicals. I agree, it's too difficult to separate the two, and it's hardly necessary for treatment. Add to this the fact that emotions can cause brain damage (it's called PTSD) and the two become impossible to separate. So... there may not actually be a huge difference in feeling sad about trauma and chemical problems. Not all chemical problems are genetic.