Originally Posted by Melody
Firstly, our bodies don't produce lactic acid but instead produces lactate, a very important form of energy. The lactic acid production was widely believed to be true for over 60+ years but as we've learned more about how the body works this has been debunked.
What occurs in our body and exertion increases is we begin to rely more heavily upon the lactate created in our bodies. The lactate itself is broken into glucose which is used by the bodies under strenuous activity.