Sorry list, supposed to go to my sister. sigh.... Oliva ---- Original Message ----- > If I remember, you used to get a sore throat if you would get too much > exercise. That was an induced stress to the system because the blood became > too acidic. Learn something new every day..... > > ----- Original Message ----- > From: "William Schnell" > > >What causes the blood pH to become more acid? also too much > > exercise.