Sexual desire is the desire of an individual to have sexual relations or physical contact with another body. In the daily life of a couple, men may be affected by various disturbing factors and show a reduced or diminished libido. So, what are the factors that can affect male libido? Health status: The impact of health status on sexual desire is both important and complex, because only physically and mentally healthy people may maintain a normal sexual desire for a long time. Some chronic diseases can significantly affect male libido, such as metabolic syndrome (hypertension, hyperlipidemia, diabetes, obesity), autoimmune diseases, chronic respiratory diseases, hepatitis B or liver cirrhosis, etc.. Furthermore, in a sub-healthy condition, men’s libido can be significantly suppressed. In extreme fatigue or long-term in a state of chronic fatigue sexual function is likely to be weakened. At the same time, the spirit of long-term depression or the existence of a variety of psychological disorders, that is, in a psychologically unhealthy state will also affect sexual function. Age: This is an important factor that affects sexual desire. Male adult with age, sexual desire is gradually declining trend, 40 years old after the performance is more obvious. The reason for the decrease in libido due to age is mainly related to the decrease in the level of serum testosterone, which plays a vital role in the maintenance of male libido and erectile function. Nutritional status: Nutrition is the material basis of sexual life. Research results show that the lack of protein and zinc and other important micronutrients in men can cause reduced sexual function. Adequate and complete nutrition, especially more food rich in high-quality protein, multivitamins and zinc, can maintain the normal level of sexual function. However, it should also be noted that excess nutrition can cause obesity, and heavy obesity can lead to lower levels of androgens in the body followed by hypersexuality. Drugs: long-term or large amounts of certain drugs, can lead to hypogonadism. There are many kinds of drugs that affect sexual function, the main and common ones are: opioids, some anti-hypertensives, sedative-hypnotics, anti-androgen drugs, estrogenic drugs and some anti-cancer drugs. Longer periods of radiotherapy can also lead to a lower sex drive. Emotions and feelings: When people are in a bad mood, sexual desire is easily reduced temporarily, especially in a bad state such as extreme sadness, terror, indignation, sorrow, depression and despair, sexual desire will be significantly affected, and can even be completely lost. With the receding of bad emotions, sexual desire will also be restored, but generally speaking its recovery time is slower than the bad emotions receding. The relationship between husband and wife and sexual desire is very close and quite subtle. This is not surprising, because human beings, unlike other animals, do not produce sexual desire is not a purely biological instinct, but is mostly triggered by love. Therefore, the couple’s feelings between the obstacle, especially to the extent of breaking, mutual boredom, sexual desire is mostly reduced. Not only that, some couples surface peace and quiet never quarrel, but internal distrust, mutual suspicion nagging. This kind of seemingly separated from the couple because of the bad mood, will also cause the sex drive to decline. Therefore, the harmony of sexual life between the couple from the harmony of feelings between the couple. Sexual stimulation threshold: male sexual desire and the intensity of sensory stimulation. The constant stimulation of sensory organs such as vision, smell, hearing, and skin touch can stimulate a stronger sexual desire. But some of the men who have many years of married life will have elevated sensory stimulation threshold phenomenon, the conventional habit of sensory stimulation has been difficult to reach the point of sexual excitement, often feel unable to raise sexual interest. This decrease in libido is often relative, its own libido may not appear to be a problem, when encountered with new and stronger sensory stimulation, libido may play normal. Smoking and drinking: Men who drink alcohol are prone to sexual dysfunction and endocrine disorders, causing erectile dysfunction and lack of sexual pleasure, thus leading to a decrease in sexual desire. Smoking can lead to erectile dysfunction, causing sexual disharmony and thus affecting the libido of both husband and wife. Therefore, after quitting smoking and alcohol can improve sexual dysfunction and increase libido. Living conditions: living in a cluttered, poorly ventilated, overcrowded environment, will not only cause a bad mood, and due to the lack of fresh air indoors, resulting in insufficient oxygen supply to the brain and affect sexual function, so that the libido is reduced. Especially several generations of people living in the same room, or with children sleeping in the same bed, will cause invisible pressure, easy to cause a decrease in libido, when the living conditions improve, this decrease will quickly return to normal. Season and temperature: In the spring and autumn when the temperature is suitable, most people have a strong libido, especially in the spring is known as the season of courtship, while the hot and humid, sweaty summer and dry and cold winter, libido often temporarily weakened. There are various factors in life that affect male libido, but in any case both husband and wife must encourage each other to overcome the above factors that lead to low libido and adjust their mindset, before the couple’s life returns to ambiguity and entanglement.