And so glycolysis takes place in the urethra site. And once we form the Pyruvate, because it doesn't have any mitochondria, it can't use aerobic respiration, so it depends strictly on fermentation. And so we transform the Pyruvate into lactate and just like in this case, it diffuses into the bloodstream. And so now we have a build up of lactate in our bloodstream. What happens next? Well, let's focus on one.