First, being in a high position and worrying about state affairs.
Managers have heard the phrase "ass decides head", which means "in your own position, ask for your own government". No matter what the previous state is, if you really go to another position, you will definitely consider more and see more comprehensively. Of course, being an emperor is the same. As the supreme ruler of a country, he must face state affairs and family affairs, and of course he must worry about everything. If you are very capable, you can certainly handle it. If you don't have enough ability, being in such a high position is completely torturing yourself, because you not only have to deal with all kinds of things, but also manage the ministers of the DPRK. Once North Korea's ministers get out of control, the country will be in chaos. So in this respect, as an emperor, it is also extremely hard. You may still be reading the paper in the middle of the night, get up in the early morning to prepare for the early morning, and have little rest every day. In the long run, your iron body will also get sick.
Second, three palaces and six hospitals, excessive consumption.
As ordinary people, they may all envy the emperor's life, with 72 concubines in three palaces and six hospitals. This life is really comfortable! But is this really the case? It's fun to take part in a pleasant thing once in a while, but every day is definitely torture. Besides, the emperor faces so many women every day. If they are not strict with themselves, they will easily indulge in debauchery, which will only make the emperor's body weaker and weaker in the long run. So there are many short-lived emperors in history, which has a lot to do with their indulgence in debauchery to some extent.
Third, the emperor didn't exercise much and ate many kinds of supplements.
As an emperor, the most likely thing to do is to look at the memorial, so an industrious emperor just sits and lies down for a long time every day, rarely exercising, and the eunuchs in the DPRK will do everything possible to stop the emperor from exercising, because once there is a little damage, they will be overwhelmed, so they will serve the emperor carefully and dare not make any mistakes. Moreover, the emperor always wants to live a long life, so all kinds of supplements should be kept, and even some emperors make an alchemy in pursuit of immortality. Eating these things is not only bad for your health, but also very harmful. In this case, how can the emperor's body bear it!