Last year, during the summer, I went to Beijing. Because of the time difference, I was not able to sleep more than a hour or two. And I didn't eat breakfast the next morning. But we did go on the subway planning to go to Tiananmen. I fainted on the subway while standing up, but luckily I was with my mom and sister. But this year, I am going on a tour by myself. Is there anything I can do to prevent last year's situation?How to Prevent Fainting?
yes, eat breakfast