“…It picks up as much oxygen as it can, but at a lower oxygen pressure, that means the blood is still retaining a slightly higher amount of CO2. Okay. I had another question for you and that was regarding lactate. How feasible, I know we work with people who regularly get blood work done and depending on what their blood work looks like, there's various reasons for suggesting changes to their diet or lifestyle. What do you think of lactate testing as a means to ascertain whether somebody truly is under stress”