Sexologist Michael Casselman said, "Healthy men can get an erection at any age. But if men reach the age of 50, erectile function will change. The erection slowed down. They can't get an erection through fantasy. You need to control and guide the stimulus. Many men will do this: once they find that the erection speed is slowing down, they will think,' Oh, my God, my sex life is over'. But this is not the case. In fact, only their sexual life has changed. " A male impotence expert said that the problem is that most men don't know that many of these changes can be prevented. They didn't take any measures to maintain their sexual ability until the problem appeared. Irwin Goldstein, a professor of urology and gynecology at Boston University School of Medicine, said in an interview with WebMD: "With regard to impotence, people have been focusing on treatment, not how to prevent it." Doctors know that several diseases are related to impotence. 40% diabetic men have erectile dysfunction. Moreover, impotence is very common among men with cardiovascular diseases, especially those with angina pectoris or heart disease. Drugs for various diseases may also lead to impotence, such as hypertension drugs. Many doctors think that curing these diseases will also improve men's sexual ability, but doctors are not sure. So what's the best way? Take measures to prevent problems before they start to affect your sex life. Step 1: Maintain sexual ability through exercise. Dr. Goldstein said that at least one healthy habit-exercise, there is a clear relationship between exercise and sexual ability. The researchers found that among men who participated in the Massachusetts male aging study, men who consumed an average of 200 calories a day through exercise were much less likely to suffer from impotence than men who did not exercise. But not all exercise methods can play the same role. Professor Goldstein warned that men who ride bicycles (whether on the road or in the gym) are twice as likely to suffer from impotence as ordinary men. Researchers say that cycling will continue to inhibit the blood supply to the penis and destroy the nerves of the penis. Step 2: Give up unhealthy living habits. Stay away from obesity's erectile function depends on various complicated factors, some of which are physiological factors and some are psychological factors. But one of the most important factors is having healthy arteries. There is a complex tissue network in the penis, and the penis tissue is congested during erection. If arteriosclerosis blocks the blood flow of penile artery, then you may not enjoy sexual pleasure. Castleman told WebMD: "There is no doubt that arteriosclerosis begins at a young age. But the problem is that there will be no serious symptoms when you are young, and clinical symptoms will only appear after 40 or 50 years old. But if you are a man, and you are in your 40 s or 50 s, and you are quite sure that you have arteriosclerosis. It may not affect your heart function, but arteriosclerosis does exist, and arteriosclerosis is not limited to the heart artery, but the arteries of the whole body will harden, including the pudendal artery that supplies blood to the penis. " There are three ways to prevent arteriosclerosis and improve sexual performance: * Remove unhealthy fat from your diet * If you are too fat, you should lose weight * Quit smoking. If you haven't started smoking, never smoke. Castleman said, "I wish I could say in all outdoor advertisements in America,' Every time you smoke, your penis will be hurt. "Step 3: Check the medicine you are taking. Researchers say that impotence may be a bad side effect of many common prescription drugs, some over-the-counter drugs in pharmacies and illegal substances. If you take drugs to treat the following diseases, discuss with your doctor the possible side effects of drugs: * depression * hypertension * psychosis * anxiety * heartache * benign prostatic hypertrophy * high cholesterol. The doctor may advise you to change another medicine. Or the doctor will advise you to take medicine at some time in the evening, so that the medicine will not affect your sexual ability as much as possible. Experts say that many drugs can also cause impotence, such as alcohol, synthetic sterols, heroin, marijuana and so on. Step 4: Consider preventive treatment. There is a drug that can help impotence men get an erection again. Yes, we are talking about Viagra, but it's not what you think. Goldstein asked some of his patients to take 1/4 tablets of Viagra before going to bed, instead of waiting until they have sex. Goldstein explained: "The problem is that when the penis is erect, it does receive oxygen. After a busy day, the penis hardly gets any oxygen. In order to make the penis erect at night, oxygen must be provided first to ensure that the penis is in a healthy state. We have evidence that if you take Viagra at night, your erection will take a long time and be firm, which means there is a lot of oxygen in penis tissue. Step 5: Reduce expectations. Women who read this article may not be surprised. Men need to understand that "sex is not limited to penis, sex is a whole body experience". Kasman said, "When Michael Jordan jumps up and shoots, does he only use his waist?"? "No, he used the whole body, all parts of the body must cooperate. From a neurological point of view, the human body structure determines that excitement and sexual stimulation are a whole-body experience. If you only focus on one part of your body, then the effect is not good. " He said that men should be realistic and understand that at the age of 50, the speed of penis erection is slower than before. During sex, the penis will suddenly become soft. Kasman said: "After 45 years old, many men will experience this kind of penile erection and softening. This is normal. A man should communicate with his wife and say to her,' Look, I'm getting soft now, and I need your stimulation'.