Traditional Chinese medicine believes that "having sex when drunk and full" will dissipate the body's essence, such as "Don't have sex when you are full" and "Don't have sex when you are tired", which means that you should not have sex immediately after a meal when you are full (or tired), and it is also not advisable to have sex immediately after taking a bath. Because the blood flow distribution in various parts of the human body varies greatly when the body is at rest, the blood flow per minute is 1200 ml for the kidneys, 1500 ml for internal organs such as the liver and spleen, 750 ml for the brain and kidneys, 850 ml for skeletal muscle, 450 ml for skin, 250 ml for myocardium, and 350 ml for others, totaling about 5400 ml. The body also has the ability to regulate blood flow at any time. The kidneys, liver, and spleen store most of the body's blood when the body is at rest. When the body is under stress, the blood volume will be redistributed. For example, a large amount of blood enters the skeletal muscles during exercise, a large amount of blood enters the gastrointestinal tract after eating, and the skin blood vessels dilate after taking a bath, and a large amount of blood enters the dilated blood vessels in the human skin. If you have sex at this time, the blood allocated to the reproductive organs will be reduced accordingly. However, one of the most notable characteristics of the reproductive organs during sexual intercourse is widespread congestion. The body must use a large amount of blood to the reproductive organs. For example, if you have sexual intercourse after a meal or after a bath, it will cause competition for blood between the gastrointestinal tract or skin blood vessels and the reproductive organs, which will inevitably lead to insufficient blood supply on one side. If the patient already has coronary heart disease or insufficient brain supply, it can easily induce angina pectoris, myocardial infarction or stroke. Therefore, it is not good to have sex after a meal or after a bath. |
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