Pyruvic acid binds with Coenzyme A (CoA) to form acetyle CoA. The acetyle CoA begins the Kreb Cycle.
Based on the scenario, the client who behaves the way he is
in the scenario is likely to behave in a way that his expression of feelings
are being controlled. It could be seen from the way that he is trying to keep
it in despite of the struggle or the scenario that he has experienced.
It depends on whatever it's real or just a simple theory. But, at times it may not be simple as it seems, because theories are often left as theories. In the near future (or even now) they'll be testing to see if theories can be proven as a fact!
Good luck!