A perfect sex life is an important aspect of a couple's life, but in real life, many women complain that their sex life is imperfect. The most common complaint is that husbands fall asleep immediately after sex, completely ignoring the emotional and physical needs of their wives. Therefore, many women are puzzled as to why men are so "selfish" in their sex lives. In fact, this is a misunderstanding. Falling asleep immediately after sex is not just a common phenomenon among individual men. Some foreign scholars call it "post-coital syncope," which is characterized by a significant feeling of fatigue in men within a short period of time after sex, ranging from drowsiness to deep sleep, and the time and manifestations of the feeling vary for each individual. It was previously thought that the physical exertion of sex may be the main reason for fatigue in men, but recent studies have found this to be inaccurate. A sex life survey in the United States shows that the average heart rate during sex is around 120 beats per minute, and the highest heart rate in daily life can reach around 100 beats per minute. If some light activities are added (such as brisk walking, short-distance cycling, etc.), the heart rate can reach 120 beats per minute or higher. In other words, the physical intensity of sex is equivalent to some physical labor in daily life, but it is not enough to cause such fatigue. So what is the reason? Recently, foreign scholars have found that the level of melanocortin increases during penile erection. Melanocortin is a substance secreted by brain tissue. Under normal circumstances, its secretion peaks before falling asleep at night. It mainly regulates the body's sleep, makes people feel sleepy and promotes sleep. In the past few years, the United States has also developed artificially synthesized sleep-promoting drugs of this type, which are very effective, which explains the phenomenon mentioned above. During the penile erection process, the increase in melanocortin, which should have occurred at night when falling asleep, occurs ahead of time, which is equivalent to men taking "sleeping pills" at the beginning of sexual life. Coupled with a certain amount of physical exertion, it is not surprising that men fall asleep after sex. Therefore, women should not attribute this to their husbands' indifference. It should be noted that, precisely because the occurrence of the above phenomenon is a physiological reaction, in daily life we must avoid engaging in work that requires high concentration within a short period of time after sex, such as driving, because the danger of a highly sleepy person driving on the road is obvious. |
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