Health most people do not stay up late, I have not been able to understand a question, if you sleep late and get up late is counted as staying up late? If you often sleep at one or two o'clock at night and get up around nine o'clock in the morning, is it still a late night? Is this not good for the body? This question is certainly not easy to answer, otherwise why haven't you seen which health master talk about this? Since I retired last year, I have been taking online classes, investing most of my energy and the right amount of money to realize the hobbies I missed as a teenager, and the evening is the quietest and most quiet chunk of my day, so I almost always go to bed at one or two o'clock, get up around nine o'clock in the morning, not breakfast, two meals a day, and I don't know if this lifestyle is healthy.