Most men who have some sexual experience have this feeling. After each sexual intercourse, they may experience varying degrees of eye pain, blurred vision, and difficulty in eye movement. The duration varies from person to person. Some may recover after a short rest, while others may take a day or two. The more frequent your sexual activity, the more severe the eye discomfort will be and the longer it will last. Why is sex life linked to changes in vision? This starts with the relationship between the eyes and the brain. It turns out that there are 12 pairs of cranial nerves emanating from the brain, and 5 pairs are distributed in the eyes, which are responsible for vision and eye movement respectively. At the same time, the blood to the eyes is mainly supplied by the internal carotid artery and the posterior cerebral artery. During sexual intercourse, the energy and thinking are highly concentrated, which requires a certain amount of energy. At this time, blood vessels throughout the body expand, and the blood flow to the brain decreases, and the blood supply to the eyes is restricted. Therefore, once sexual intercourse is over, discomfort in the eyes will "come into being". From this we can see that our ancestors' warning that "indulgence will harm your body" does make sense, and men should take it to heart. What exactly does excessive indulgence hurt men? In the past, it was mostly attributed to frequent sexual life consuming too much physical strength and energy, causing excessive physical fatigue. But according to the latest medical research results, the main reason is excessive loss of semen. In addition to water, fructose, protein and fat, semen also contains a variety of enzymes and mineral elements, and these ingredients play an irreplaceable role in the life mechanism of men. The importance of zinc to the human body is self-evident. It has been determined that the zinc content in each milliliter of semen is as high as 150 micrograms, which is unmatched by any other body tissue. If we assume that 2 to 6 milliliters of semen are consumed during each sexual activity, 300 to 900 micrograms of zinc can be lost during one sexual intercourse. You should know that the total amount of zinc in the body of a 60 kg man is only about 1.5 grams. Excessive sexual indulgence will lead to serious zinc deficiency |