Recently, I saw in the newspaper that someone summarized some devil moments that are prone to emergencies, however, for these so-called devil moments, we must recognize them in a scientific manner and not be misled. Devil’s hour 1: 6:00 to 9:00 in the morning and 4:00 to 8:00 in the afternoon, saying that these two moments are prone to heart attacks and strokes and other emergencies. It should be said that this statement has some scientific basis, but it can be misleading. In fact, the devil’s hour of the day is closely related to people’s habits, rather than determined by the specific time. More scientific studies have confirmed that early morning is the time when heart attacks and stroke emergencies are likely to occur, which is related to the low blood pressure during sleep and the drastic changes in blood pressure in the early morning, and this change in blood pressure can lead to platelet aggregation. There are also studies that confirm that reduced activity (sleeping or not sleeping) after eating a proper meal (lunch or dinner) is a trigger for cardiovascular disease, so you should promote walking 100 steps after a meal, and you should also change the habit of taking a nap right after lunch. Devil’s hour 2: Monday of the week. There is some scientific basis for this statement, and there are more large-scale clinical surveys confirming that Monday is the time of the week when the incidence of cardiovascular disease is high, again this high incidence has nothing to do with Monday itself, but rather with people’s work patterns, and some studies have confirmed that the high incidence of cardiovascular disease on Monday is associated with an increase in sustained work stress. However not all studies agree with this statement, a clinical survey in Japan involving 50,000 people did not find this trend, likewise a similar study done in our hospital (The First Hospital of China Medical University) on patients admitted to the hospital did not find this trend either. Thus compared to Devil’s Hour 1, Devil’s Hour 2 is less powerful. Devil’s Hour 3: Around the full moon each month is also the devil’s hour, and also prone to acute illnesses. A quick glance shows that this is incorrect, presumably from watching too many vampire movies, as this devil’s hour conflicts with devil’s hour 1. In fact, there have been more research teams that have applied a lot of clinical data to scientifically analyze this rumor and published articles that fundamentally disprove this devil’s hour. Ironically, the Korean team’s results show that the three days after the full moon actually have a significantly lower incidence of cardiovascular disease. So this is more of an angelic moment than a demonic moment. Compared to Devil’s Hour 1 and Devil’s Hour 2, Devil’s Hour 3 is a non-existent Devil’s Hour Devil’s Hour 4: the hottest and coldest time of the year. In fact, for cardiovascular disease, it is the time of seasonal changes, especially around November in the fall and winter, rather than the hottest and coldest times, that has the greatest impact. Of course, in the hottest season, the number of beer drinkers increases, and the number of people who get into fights and car accidents due to drunkenness is bound to increase, and the number of corresponding emergency cases will also increase, but this is a different concept, unlike cardiovascular diseases, which are completely preventable What must be noted is that the so-called devil’s hour may play a positive role in disease prevention propaganda due to its vivid image, but we must uphold a scientific attitude and not believe in unscientific information gullibly. In particular, we should not relax the degree of attention to health in general, because there are many factors affecting cardiovascular disease, and time itself does not have an impact on the disease, the so-called devil’s hour essentially works through people’s lifestyle habits.