Couple sex should be intimate and healthy, but some sexual behaviors will affect human health. The following sexual behaviors are some of them.

1: Alcohol Danger Index: ★★★★★

Shakespeare was the first to point out that "alcohol stimulates passion, but makes action in vain." It is true that alcohol appears to help one's nature, but in fact it destroys one's nature. Traditional Chinese medicine has believed since ancient times that having sex after drinking consumes qi and damages essence. Although the excitability of the brain nervous system is temporarily enhanced after drinking alcohol, sexual function is temporarily reduced. Men have difficulty in erecting or their duration of erection is shortened. Drunk sex can also increase testicular binding globulin in men, damage the testicles and weaken their ability to produce testosterone (sex hormone). In addition, 70% of the sperm produced after drinking may be underdeveloped. If pregnant under such circumstances, 26% of the fetuses will have health problems, especially intellectual disability.

Tips: Whether it is champagne, strong liquor, draft beer, or wine that has always been labeled as healthy, abstain from sex within 2 hours after drinking.

Two: Hot water bath Risk index: ★★★★

Many people regard bathing as a prelude to sex. In fact, a hot bath for more than 5 minutes consumes a lot of physical energy, and sex requires sufficient physical energy reserves. In this case, the duration of sex is often shortened. At the same time, the human body gradually relaxes under the action of hot water, and the whole body enters a resting state. It is difficult for various organs to be excited quickly. Intense sex will cause rapid congestion and damage to sexual organs, and rapid stretching can easily damage muscle fibers. Most importantly, long hot baths reduce body sensitivity.

Tips: If you do body cleaning before sex, please limit the time to less than 5 minutes; if you want to enjoy a romantic double bath, please move the lingering time to after sex.

Three: Movie risk index: ★★

The latest research has found that the more fragrant visual stimulation makes the human nervous system extremely excited. When making love under such high stimulation, the brain is often in a state of deficiency. oxygen status. Although temporary brain hypoxia can add fantastic sexual pleasure to some people, over time, when brain hypoxia exceeds physiological limits, people will feel dizzy and collapsed. Do not regard these symptoms as symptoms of intense sex. Normally, they are actually manifestations of out-of-control autonomic nerves in the human body. In the long run, heart and brain functions will be damaged.

Tips: You might as well use more "natural" stimulations such as touching and kissing to stimulate lust.