I am leaving for a trip to China. I was contemplating on weather I should bring the flag with me. I decided not. It is just too big to carry. I did a bunch of running in my hometown Kunming. It is 1 mile above the sea level and I had difficulty breathing. My plan was to build up my hemoglobin at a higher altitude. Generally the more red blood cells you have the better you feel in Marathon since the more red blood cell can carry more Oxygen. You body will generate more red blood cell at higher altitude to compensate the lack of oxygen at higher altitude. Since I exercised for all five days in China, my red blood cell count will increase. The excess of red blood cell wont die until 120 days after I went back to see level. This will help in my Marathon in December, which is in less than 120 days.