Sub-health is an intermediate state between physical health and physical disease. To fatigue or sleep disorders, physical symptoms, manifested as fatigue, insomnia, dizziness, headache, loss of appetite, panic and chest tightness, loss of libido and other symptoms, we are accustomed to call it “premature aging”. Sexual behavior is a kind of linkage mechanism from central to peripheral, from whole body to local, from psychological to physiological, composite behavior. Erectile dysfunction is both a clinical symptom and a disease. Due to the enormous work and life pressure, people’s organism is often in a state of somatic and psychological stress. Therefore, for young secondary patients with no specific past medical history, erectile dysfunction caused by sub-health should be considered. Due to long-term poor dietary habits and great mental stress, sub-healthy state for a long time is prone to hypertension, diabetes, high blood fat, obesity and other diseases, and these factors can affect sexual function. So, what factors can cause male sexual function decline? 1, sleep deprivation, too much pressure, deep sleep is the peak of testosterone production, short sleep, lack of deep sleep will reduce testosterone levels. Sleeping less than 6 hours a day and sleep apnea can cause low testosterone. Stress hormone cortisol and testosterone are derived from the same hormone production system. When you are under stress, the amount of cortisol hormone will be more, which will take up the “raw material” and “production line” of testosterone, and stress will also promote the consumption of testosterone hormone, which will cause low testosterone. Low testosterone. Decrease in testosterone level can affect the function of the gonads, or can lead to decreased libido, or even impotence. 2, obesity research shows: too obese male general ability will not be too strong. Because obesity can affect the sexy technique and the exercise of sexual ability. According to the survey shows that in obese men have sexual dysfunction or similar sexual life disturbances accounted for about 60%, manifested as libido, penile erection, ejaculation during sex and sexual feelings on the low. Obesity often coexist with sexual dysfunction, the causal relationship between the two is not yet clear, the reason may be due to obesity prone to diabetes, hypertension, cardiovascular and cerebrovascular diseases. Obese people generally have lipid metabolism disorders and high cholesterol and hypertriglyceridemia, these diseases itself will make the body metabolic disorders. Normal men’s body exists in a small amount of estrogen, most of these estrogen by androgen transformation, a very small part of the seminal vesicles by the direct secretion. The increase in body fat in obese people, so that more androgens are converted to estrogen, androgens are relatively or absolutely reduced, manifested as a decrease in libido, erection and sexual intercourse function is weakened or lost, there will also be ejaculatory dysfunction. 3, diabetes Diabetes is a metabolic disease characterized by high blood sugar. Diabetes will not only complicate a variety of diseases such as retinopathy, diabetic foot, diabetic nephropathy, etc., but also affect sexual function! Erectile dysfunction, a common complication in men with diabetes, has a complication rate of 35% to 70%, and the incidence of erectile dysfunction in diabetic patients is three times higher than that in non-diabetic patients. The occurrence of sexual dysfunction in diabetic patients may be related to the following factors. Phytoneuropathy: Some studies have pointed out that nerve abnormalities are the main cause of erectile dysfunction in diabetic patients, especially sensory neuropathy is the most important. Penile erection is needed to fill the blood vessels, is regulated by the nerve, you if there is a vagus nerve damage, it will affect his penile erection, will appear impotence. Vascular factors: human penis normal erection its arterial blood flow will increase six times, any vascular factors affecting the normal supply of blood flow will lead to the occurrence of sexual dysfunction. The study concluded that more than 70% of diabetic patients with sexual dysfunction have vascular lesions, and diffuse vascular anomalies, lesions in the middle and late stages can appear a variety of serious vascular lesions, advanced intra-penile arteries can even appear atherosclerosis, luminal narrowing or even complete occlusion, and so on. 4, hypertension Hypertension can lead to sexual dysfunction, mainly because of the elevation of blood pressure can cause penile arterial sclerosis. Because it will affect the small arteries of the whole body, including the penile artery, penile arteriosclerosis will lead to insufficient blood supply to the penile artery, in addition to high blood pressure and through the change of vascular endothelial cell function, caused by penile vascular constriction and diastolic dysfunction, both of which may cause erectile dysfunction, impotence performance occurs. Secondly, long-term use of antihypertensive drugs such as reserpine, thiazide diuretics can also make erectile function decline. Decline in sexual function may be a manifestation of sub-healthy state, and long-term not to be corrected, with age, will give rise to a series of the above diseases, the sexual function of the line of the second blow.