Normal men have 3~6 spontaneous erections during night sleep, which is a natural physiological response during sleep, also called nocturnal erection. Morning erection is the erection phenomenon observed by men when they wake up in the morning, because erection usually occurs in the early morning so it is named as morning erection, morning erection is a normal physiological reaction of men. How to correctly understand the morning erection, the existence or otherwise of morning erection and impotence is not necessarily related? Please see the following explanation: 1. Why have morning erections? The exact mechanism of morning erection is not yet very clear, and it is generally believed to be related to the stimulation of the nerves and blood vessels innervating penile erection. ① Here also include psychological stimulation and external sexual stimulation, such as clothing and other external stimulation, sexual fantasy (infants also exist subconscious sexual desire). At the same time, the following two conditions are present at this particular time in the morning. ② Physical strength and energy are at their best. After a whole night’s sleep and rest, both physical strength and energy are at their best in the day. Therefore, the quality of penile erection is generally best in the morning. ③ bladder full, the morning bladder will generally store a certain amount of urine and expansion, so that the nerves of the erection of the role of excitation, thus helping the erection; at the same time because of the expansion of the bladder state, hindering the flow of venous blood out of the penis, which also helps the penis erection. 2, what behaviors and habits will affect morning erection? The following bad habits can affect morning erections: ① Fatigue, lack of sleep: the above factors can cause mental and physical exhaustion, which will definitely affect the frequency and quality of morning erections. ② Unhealthy lifestyle habits Excessive smoking, alcoholism, irregular diet and work schedule will also affect the occurrence of morning erections. ③ Anxiety, depression and so on. 3. How does age and health condition affect morning erections? Morning erections begin in infancy and remain stable for a long time thereafter. However, there is no exact information about the number of morning erections in each age group. Generally speaking, after the age of 30, morning erections will gradually weaken or decline with age, and after the age of 60, the number of morning erections in older men will be even less. 4. Is it impotence if you don’t see morning erections? When occasional morning erection decreases or disappears, you can’t directly identify yourself as impotent, because after all, morning erection is affected by many factors. In particular, too much attention to the morning erection sometimes can not see the morning erection, and if the resulting anxiety will aggravate the morning erection reduction. In fact, as long as there is no problem with the quality of erection during sex, there is no need to pay too much attention to whether there is morning erection or not. Many adults often do not have morning erections, but still have a satisfying sex life. 5. How to treat morning erections correctly? The quality and frequency of morning erections involves many factors such as age, energy, physical strength, health, etc. It is not just an indicator of good or bad erectile function. Of course, if the morning erection disappears for a longer period of time, or if there is difficulty in getting an erection during daily sex, or if the hardness of erection is not good, or if the satisfaction of sex life decreases, it is necessary to pay attention to it. Especially if you fail to find relevant factors such as psychological stress, fatigue and sleep deprivation, you need to be alert enough. Once you find the existence of organic causes, you should rush to the male department of a regular tertiary hospital in order to nip the disease in the bud.