Aug 27, 2021. Today, I spent the whole day preparing for my classes on tomorrow. Although I had a heavy lunch, I still felt hungry in the early evening after work, so I went to the cafeteria and had rice noodle rolls with beef stew, one of my favorite evening snacks. Later, I headed to the track and field. At first, I walked on the track while listening to NPR news. There was a piece of news about discussion on Covid 19 booster shots. Then, I ran 10 laps around the track, that is 4000 meters distance.