The early warning role of erectile dysfunction and the scientific view of computers and nocturnal emission.

ED is short for erectile dysfunction. Experts point out that there are many factors that cause ED. Unhealthy psychological factors, physiological conditions, and lifestyle can all lead to ED, and the vast majority of cases will have early symptoms. Due to its special warning function, ED is called a "crossroads of men's health problems" by experts. With the fast pace of modern life, the pressure from work, family, and finances is increasing, and this pressure is especially great for men. Many people suffer from psychological imbalance as a result, leading to anxiety and depression.

Erectile dysfunction (ED) refers to the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual intercourse. ED is classified into three degrees: mild, moderate, and severe, with impotence being a severe form of ED. Researchers have found that depression can lead to ED, and the likelihood of ED is increased when anxiety and depression coexist. Medical experts also point out that only a small percentage of ED cases are caused by mental illness; the majority are caused by underlying medical conditions. Any disease that affects blood vessels or normal blood flow can lead to decreased erectile function.

Survey data shows that the incidence of erectile dysfunction (ED) is rising due to the increasing prevalence of diabetes, hypertension, and cardiovascular disease. For example, approximately 50% of diabetic patients also experience ED. This is because diabetes can cause damage to the autonomic nervous system, leading to ED. The incidence of heart disease increases with age; the probability of ED in heart disease patients is 39%, and even among men over 40, two-thirds of heart disease patients suffer from moderate erectile dysfunction. Experiments have also shown that some medications, such as hormones, diuretics, antihypertensive drugs, and antipsychotics, can also cause erectile dysfunction. In addition, conditions of the reproductive organs themselves, such as congenital penile malformations, or nervous system diseases can also cause ED.

Most notably, an unhealthy lifestyle is also a contributing factor to erectile dysfunction (ED). Irregular living habits, poor nutrition, insufficient sleep, and addiction to stimulants such as tobacco, alcohol, coffee, cola, and tea can all interfere with the transmission pathways of sexual impulses and inhibit erection. Therefore, decreased libido or erectile dysfunction should not be ignored, as it transcends localized concerns and is closely related to the individual's physical and mental health.

The claim that prolonged computer use directly leads to male sexual dysfunction and erectile dysfunction is currently inconclusive in the medical field. However, prolonged computer use can cause discomfort due to the flickering of the screen and radiation, leading to dizziness, eye strain, and weakness in the limbs. For men, prolonged sitting in front of a computer can cause local congestion in the pelvic cavity and pelvic floor, compressing the prostate nerves and potentially affecting male sexual function. Furthermore, a sedentary lifestyle can cause psychological stress and tension, potentially leading to sexual psychological disorders. It is recommended that computer users exercise regularly and take a 5-10 minute break every hour to relax.

There's a saying among some people: "One drop of semen is worth ten drops of blood; losing semen severely damages one's vitality." Actually, analyzing the composition of semen reveals that it's not particularly precious. Besides sperm, the other part of semen is called seminal plasma, and its composition is not significantly different from blood plasma. A normal male ejaculates 3-5 ml of semen each time. Semen is milky white, weakly alkaline, and has a distinctive fishy odor. Seminal plasma makes up more than 95% of it, while sperm makes up less than 1%. Each milliliter of testicular tissue can produce 2 million sperm per day, and each male's testicles can produce tens to hundreds of millions of sperm daily.

Even if these sperm are not ejaculated, they will age, die, and eventually be digested by enzymes. Nocturnal emission refers to the involuntary discharge of semen without sexual intercourse, and it can be physiological or pathological. Nocturnal emission with dreams is called "wet dream," while nocturnal emission without dreams, or even while awake, is called "spermatorrhea." Increased frequency of nocturnal emission after exercise is mainly due to three reasons: First, exercise accelerates blood circulation, increasing blood flow to the reproductive organs, leading to increased semen volume and a state of "spontaneous overflow." Second, exercise enhances the reflex activity of the central nervous system, increasing the excitability of the erection center. Third, friction and stimulation from tight-fitting sportswear or equipment.

Nocturnal emission after marriage is a normal phenomenon. Newlyweds often experience a surge in sex hormones, resulting in a higher sperm and semen production. If 1-2 sexual encounters per week are insufficient to fully satisfy their sexual desire, nocturnal emission may occur as a way to release pent-up energy. However, if a married couple has a regular sex life but still experiences frequent nocturnal emissions each month, it may be related to physical weakness, excessive sexual stimulation, temporary separation of the couple, or urinary and reproductive organ diseases. Many people worry that nocturnal emission will affect their health, but the negligible amount of semen material will not cause any harm. However, if it occurs excessively, prompt medical attention is necessary.