What happens to the human body during sexual intercourse under MRI?

Human beings are the only creatures in the world that do not have sex for the purpose of reproduction. Have you ever wondered why only humans can evolve sex?

Have you ever wondered what happens to the human body during sex? So after reading this article today, you may get the answer.

MRI images can let us see more intuitively, what happens inside the human body during sex?


First of all, under normal circumstances, the number of heartbeats of a person is 60 to 100 times per minute. Before “start”, our heart is still beating at a normal frequency, after “opening”, it may be slightly faster than normal.

However, as long as you are not the first time, there will be no heartbeat.

Respiratory system

Excluding the causes of physical strength and intense exercise, we will find that our breathing begins to become a little bit short before we start. But at this time, we can still self-regulate and control the breathing rhythm to adjust the state. This is due to the excitement of the central nervous system, causing your blood pressure to rise, muscle contraction, and body metabolism, which directly leads to the accelerated consumption of oxygen. Therefore, oxygen intake will need to be increased, causing you to breathe shortly.

The bladder and rectum also begin to tremble due to muscle contraction. This is why sex can sometimes make you feel urinary.


At this time, due to the secretion of adrenaline, you may experience brief pupil dilation and increase the focus of your eyes.

Of course, you may not have much obvious visual changes, but studies have shown that when people are emotional, their pupils can be enlarged to about 5-10 times, and they enter a state of excitement. At this time, people’s eyes tend to look bigger and more enlightening, and you may even feel that the other’s eyes are glowing.


Do you think your tongue is at your disposal? The pattern is broken, and excitement will make your tongue start to restless. At this time, your tongue is already in your mouth and you are eager to break through the cage.
With the appearance of tongue reflection, your saliva begins to secrete more, which will make you appear involuntary swallowing action.

Kissing will increase excitement, further increase the heart rate, breathe more quickly, and irregular contraction muscle tension begins to appear in the muscles of the whole body.

High-energy warning ahead

The picture below is the key process of sex.

At this time, our blood flow will be redistributed, and blood will gather on the body surface in a short time, resulting in more abundant blood flow in subcutaneous capillaries.

This makes your skin’s surface sensitivity and feeling more obvious than usual, and the muscles begin to change from irregular contractions to regular contractions.

sex doll

8 difficult poses, it’s really hard to do without gymnastics

As a veteran driver with hard disks and web disks full of “compressed packages”, because he is knowledgeable, he often tries various positions for fear of missing an opportunity to make me happy.

However, there are some postures that are too restrictive for people to dare not try easily. Only if she is flexible enough and you are strong enough to try.

1.Sitting in Lotus (upgraded version)

After the male sits down, the female sits in opposite positions and then puts the bipod on the male’s shoulders. This position is very intimate and difficult at the same time. It requires the male to have enough strength to hold the female back, while the female is in this position there will be an uncontrolled swaying sense of loss of control, and in stressful situations, it will be easier to get excited.

2.Dog standing (upgraded version)

Men stand and women bend down vertically. This position looks simple, but in fact, it is difficult to operate. Women tend to lose their center of gravity because they are bent over. At the same time, if the height difference between men and women is too much, they also need to cross their legs and stride. Large movements, but weightlessness, and head congestion will give women a feeling of dizziness, and it will be easier for men to enter.

3.Dog standing (upgraded version)

The male stands, the female half-bends, and then leaned her leg on the male’s shoulder. This position is not only stimulating but also has a full visual score, but it is too difficult to operate and difficult to encounter.

4.Split missionaries

According to incomplete statistics, the missionary is the most used position. If you want to upgrade the next time, you can lift one of her legs, and then start to lean forward and press the legs forward. I believe you will have a different kind of feel.

5.Jade missionaries

If the split missionary can do it easily, you can try to raise both legs, pay attention to legs must be straight, bending and straightening are two sensations, straightening will make it tighter and more exciting.

6.Cheating and pinching

This position requires women to have a certain degree of flexibility. Men can sit with their backs against the head of the bed, and then women can sit with their legs split. If they are unstable or want to free their hands, men can also bend their legs so that women can lean on.

7.Diagonal spider

Sit face-to-face with your partner. The female lays one leg flat and the other leg rests on the male’s leg. The same is true for the male. Afterward, both sides lean back and you can start rubbing. This position requires strong waist strength.


The female lowers the waist, and the male enters with a horse. It is necessary to pay attention to the gentle movement, otherwise, it is difficult to maintain balance. This position has many restrictions, not only the height and physical strength of the two sides but the softness of the female.

If your other half’s ligaments are soft and you can do these difficult movements, you can try; if not, and you want to try it too, I suggest you buy a sex doll to satisfy the movements that your partner can’t reach.

Adult Art-“Sex” and “Beauty” Behind Physical Dolls

Thanks to the deep cultivation of brands such as SexRealDoll, sex dolls have gained a foothold in the adult toy industry. These brands have received extensive media attention for their innovative ultra-realistic dolls and today’s robotic technology.

In the past 2019, we have seen a substantial increase in the global physical doll market. What does this indicate?

“In addition to the fact that physical dolls have become more and more real in appearance in recent years, one thing that is difficult to ignore is social media attention. We believe that this contains many factors that determine the popularity of this industry in the current mainstream media. The factor is that e-commerce makes our connection so simple that it only needs to publish a video or a series of particularly beautiful physical doll photos on the self-media channels to spread quickly. Most of them are in daily life. They will not come into contact with physical dolls, so this gives them a bright feeling (maybe shocked!)”-a report from a foreign physical doll supplier.

When they saw a physical doll for the first time, they were often shocked and curious about its realism, and they wanted to impress their friends with this new discovery. And some people will be frightened by this sense of reality and will be judged heavily on social software. First of all respect everyone’s right to speak, this is not wrong, but maybe some relevant documentary content can tell them that it is not shameful. Another cause for concern may be the emergence of ideological movements such as “feminism” and “single thoughts”. Physical dolls have become a hot topic of debate, and supporters and opponents coexist side by side.
Maybe we can change our thinking to look at it, such as art and design. Human beings are born obsessed with the unknown (this is also the reason for the continuous progress of human beings). We might as well regard the doll as a species medium for expressing ourselves and exploring the unknown in a certain field. When you enter Yimei (a well-known physical doll forum in China), you will quickly find that more people are talking about the design, assembly, and specifications of the doll, as well as the dressing of the doll by the owner, the special name, and personality assigned to it, etc. Wait.

You will soon realize that this is not only about sex but also about creativity and imagination. This is a hobby, the same as men’s enthusiasm for classic cars and women’s obsession with lipsticks in different colors. People appreciate the perfect design and manufacturing methods of the product, as are physical dolls.
In fact, the owners of physical dolls will hold some activities similar to “making friends” between dolls. The outside world has two extreme views on the activities of baby friends. Most people feel that this needs to be done in secret. In fact, for many baby friends, these dolls have lost their adult function to a certain extent, and they are valued only because of their curvilinear design, shape quality, unique character dress, and unfailing friendship with them.

According to a practitioner in the silicone doll industry: “Our customers are more diverse than any customer group. We sell to people of different genders, couples, doll collectors, COSER, widows, athletes, photographers, and fashionistas.”

“Everyone has their own unique personal reasons to own a physical doll. We even have long-distance lovers who buy dolls from each other as gifts. Some people have one, some have many, and some people are asked on the forum “How many do you have?” “Adult doll”? “Will answer “No, but I have three “partners” or “relatives”. Or “I have a doll collection cabinet, I have not “used” them, they are just my dolls”. Some are motivated by sex, Some are not. Some are mentally stimulated, and then it changes completely and unexpectedly.”
What I want to say is that most of the baby friends are civilized, polite, open, and honest. The physical doll is a sensitive product, trust and respect go both ways. If the roles change, we also hope to be treated with respect and kindness from others. And more brand merchants are helping some groups to get partners when they think life cannot give them the attention they deserve.

If you ask, is a sex doll a long-term solution? Who knows, but for now, it seems to be doing well in terms of social acceptance and industry sales.

Have to say, there are these benefits of physical dolls?

Although physical dolls are still unacceptable in the eyes of most people, they do bring many benefits appropriately. What I mean is how many people in life are involved in deception because of that aspect of things, causing gaps between family and lovers?

If you are eager to know why the correct use of sex dolls can bring more real solutions to life, then the following points may solve your doubts.

Physical dolls can save money
A marriage without a material basis will only get you into a vortex of trouble. What is certain is that when the child is born, it is more like a bottomless pit. How will you solve it? For most people, this will be difficult to deal with. However, if you always want to enjoy unlimited sex when your financial income is limited, then physical dolls can save you. You only need to spend it once and the rest is easy. If you don’t mind, you can buy split parts, and the stage will be your physical doll assembly. I believe the manufacturer will not complain. In this way, you don’t even have to save part of your life’s necessary expenses.

TPE sex doll makes you more focused on work

When your mind is empty enough, you tend to think of evil behaviors. Sex is triggered by hormones, and this slight imagination of it will quickly make you addicted, especially men. When there are no women near you, your underlying consciousness may associate with unethical sex. But remember, if you infringe on anyone, there will be laws that will put you on a harsh trial.

The risk-free and acceptable way is to buy physical dolls. You can find something suitable for you, it will be a plump doll. Once you have them and fulfill your wishes, it is much easier to focus on your work.

The physical doll saves you from health problems.
Good health can ensure the normal progress of everything. Obesity is the development trend of many people in a sub-health state. However, sometimes it is because they neglect sports such as sex. Actin itself can help burn a lot of calories in the body. But when you want to burn calories every time, will your partner want you to use them as a weight-loss platform? Do not. However, physical dolls can. You can play with these dolls as you like, and they will never get tired. Of course, you have to pay attention to your body!

At last
Now that you know that sex dolls can save you from trouble, what should you do next? Find the best model that fits your use and fits your budget. Remember, like men, there are dolls exclusively for women. Special attention should be paid to ensure that the product you buy has a long enough service life and good quality.

Of course, I can also recommend a sex doll adult store for you: sexrealdoll

Your smart girlfriend is online

Since the first sex culture festival was held in 2003, each exhibition has gathered hundreds of high-quality brands at home and abroad. As of the successful completion of the latest exhibition, the brand influence and product quality of each exhibitor’s products have been continuously improved.

Thanks to the technological progress of the times and the increasing opening of ideas and concepts, adult toys are gradually changing from the initial “talking about sex” to today’s “talking about sex freely”. The most concerned about each exhibition is the “physical doll” exhibition. In the field, since the first generation of inflatable dolls came out, the level of doll manufacturing can be described by leaps and bounds, and the level of stimulation has reached a human-like level.

In the past 2019 sex culture exhibition, there have been many eye-catching “shes” with snow-like skin, long black hair with a shawl, big eyes, and smallmouth, and even winks at you. Talking to turn around, this is the “smart girlfriend” developed by a domestic company, and the first appearance of the domestic “smart girlfriend” can be traced back to 2016. Novel products are always attracting attention, but because of technical limitations and expensive, The selling price not only discourages some exhibitors but also countless baby friends.

In fact, foreign manufacturers started to research and develop smart physical dolls as early as 2007, and in 2017, the well-known big manufacturer Abyss produced and developed a smart physical doll called “Harmony” with the help of AI technology and machines. Programming support has been able to make some human responses.
Smart sensor

The AI-designed physical doll has an intelligent human sensor, which can easily respond to your touch. By touching her preset body sensors located in various parts, she gives voice feedback in different tones according to the degree of excitement affected by the intensity of the touch, and her response is the same as that of ordinary women.

Simulated body temperature

Artificial intelligence technology enables the doll to be automatically heated to 37°C to adapt to the temperature of real women. The merchant will provide users with a battery heating function. When you need to use the battery, insert the battery into the connection port on the side of the doll’s body. The wiring inside the doll’s body will start to heat from the inside out. When it reaches the body temperature, it will open and block The function guarantee will not damage the internal device structure of the doll.

Polymer Materials

Smart dolls use more advanced polymer thermoplastic elastomer (TPE) or silicone materials. Whether it is the surface skin or the built-in private parts, it has the characteristics of softness, better elasticity, less oil output, and no peculiar smell. Equipped with Anti-electric shock, fire, and explosion protection measures.

At present, smart physical dolls on the market are still not universal. The main reason for the restriction is the cost of technology and production. The “harmonious” selling price ranges from 1 to 5W US dollars. The smart dolls developed by the domestic high-end brand SEXREALDOLL The price of a mini sex doll is more than tens of thousands.

Regular hot springs are not conducive to fertility

Hot springs have supplemented with minerals, accelerate blood circulation, and relieve pressure through static pressure massage**. However, for men who have recent fertility requirements, they should be cautious and try to avoid hot springs. Frequently, hot springs have a negative impact on the maturity of male sperm production, resulting in male infertility.

   Sperm are produced in the testes and mature in the epididymis. The testis is located in the scrotum of the human body. The scrotum is located outside the body cavity. Its temperature is 2°C to 4°C lower than the core temperature of the body. Such a temperature is conducive to the production and maturation of sperm. However, most of the hot spring water temperature is controlled at 36 ℃ ~ 42 ℃, and some are even higher. A regular hot spring bath will increase the local temperature of the scrotum, thereby affecting the testicular spermatogenic function, reducing the testicular spermatogenic ability, reducing the number of sperm, and reducing sperm motility. Reduced, and even caused sperm death, resulting in decreased fertility.

  It takes about three months to regenerate sperm. A long-time high-temperature hot spring immersion may result in a recent decline in fertility that the prospective dads cannot detect.

  People who are going to be promoted to prospective fathers, the spa must be cautious. The high-temperature bath time should never be too long, it should be soaked, the time and water temperature of each hot spring should be controlled, too high or too low temperature is not suitable.

Hot spring bathing is now a fashionable activity. Some men like to take hot spring baths with friends. There are a lot of minerals in the hot springs and the temperature is high. However, if men often take hot spring baths, the male scrotum is kept at a high temperature. In the state, it may affect the development of sperm and also affect the production of male hormones. These will cause male infertility.

So if you want to maintain reproductive health, you must maintain the temperature while keeping the lower body fresh and clean. It is recommended that you try Dr. Men’s Essential Oil, which can be used for daily sterilization and maintenance of the lower body to keep the lower body dry, cool, and knowing Unexpected gains.

You can choose to buy a mini sex doll

Sex exercises to enhance the sexual ability of couples

To obtain harmonious and perfect sex between husband and wife, you need to exercise your body to the best state. For sexual harmony, the important parts in muscle activity from top to bottom include shoulders (for a better hug), abdomen, hips, and groin (the main areas of sexual activity). Let’s take a look at these parts of the sex exercise.

  1, shoulders

   This set of movements is not just to increase the strength of the shoulders (weightlifting and pull-ups can do this), but also to increase flexibility. Rolling and rolling on the bed requires the flexibility of the shoulders up and down, left and right. For best results, straighten your arms forward, grab your left wrist with your right hand, and then stretch your arms above your head, and push back slightly until you feel a slight pull in the armpits. Maintain this position for 5 times, then relax your arms and repeat this action one or two more times.

  2, abdomen

   The muscles in the abdomen are perhaps the most important muscles when men have sex. The most commonly used sit-ups can strengthen abdominal muscles. Lie on your back, bend your knees, cross your arms over your chest or clasp your neck to support, and slowly raise your head and shoulders so that your shoulders are 4 inches off the ground. Keep this posture 3 times, then relax and repeat this action, the number of times is limited to the personal comfort level. Slowly increase the number of times according to personal practice.

   3. Hip and groin

   The main point of this part of the exercise is flexibility, not strength. The following two exercises help achieve this goal. The first exercise. Sit on the floor with your feet together, your legs bent, your knees apart, and place your elbows between your knees to reach the ankle joint. Then hold the ankles and touch the soles of the two feet together, bend the body slightly forward, and use the elbows to hold the two knees respectively, and slowly press the two knees to the floor.

   4. Kegel exercises

   Dr. Kegel first invented this exercise in the 1940s to help women increase bladder control. These exercises can also help men’s sexual erections to obtain more frequent and intense orgasm and sexual enjoyment. This set of exercises mainly trains urination control muscles. There are three basic exercises, the steps are simple, and the operation is not difficult.

   The first exercise: Imagine the feeling that you have started to urinate and then stop. You can feel that the muscles deep in the groin are tightened. Do it this way and keep counting to 3. After practicing for a period of time, you can increase the count to 5. As long as you progress easily, you can increase the number to 10.

   The second exercise. Tighten and relax this muscle as quickly as possible. The third exercise. Imagine squeezing out a few drops of urine after the bladder is empty. At this time you will feel that the abdominal wall is also tight.

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Men who are too fat can affect sexual offense

Modern people have a tense life and high psychological pressure. With the change of the relationship between the sexes, there are more and more men who are not easy to have children, and they often have one thing in common, that is, they have big stomachs! Abdominal fat is too much. Men are infertile. Infertile men can be roughly divided into two types: “otaku type” and “burst liver type”. The respective problems are not the same, but too much internal fat and “obesity” often cause them. The culprit of infertility! Let’s talk about the “otaku” men first.

  Otaku infertility personality repression does not love sports

   Men of this type are usually kind-hearted, gentle-tempered, and not good at speaking. Therefore, when “otaku” men are frustrated in the workplace, or conflict between husband and wife, and dissatisfaction in the heart, they are not used to expressing their feelings. Mobile phones, watching TV, etc. serve as channels for stress relief. Over time, I developed a lifestyle that does not love sports and has too little activity. “Otaku” men tend to have a depressed personality and do not like sports. If they add to the problem of excessive abdominal fat, it is easy to increase the risk of infertility.

  Burst liver infertility work overwork diet imbalance

   As for the “burst-type” men, they are often engaged in business hours, computer engineers, and other long hours of work, often working overtime, not only stressful but also abnormal diet. If it is a business, it is necessary to continuously socialize, and it is more likely to have problems with overeating and nutritional imbalance. “Burst liver” men live a tired life every day, go home, and just want to fall head to sleep, improper diet, and no exercise habits! “Burst liver” men work hard, socialize frequently, have poor eating habits, and have no time to exercise, which is likely to increase the chance of infertility.

  Too much fat causes toxins to become uneasy and difficult to give birth

   Generally speaking, the fat stored in the body will be converted into required hormones, and good hormones can secrete the sex hormones needed by the body, but bad hormones will reduce the generation of TGF (transforming growth factor) family. When there is too much internal fat, the human body will inhibit the production of TGF. From the perspective of Chinese medicine, this is the production of toxins, which can easily cause fertility problems such as sperm quality decline and poor sexual attack. In addition, excessive fat will cause the following effects on men, making the risk of infertility higher and higher.

   1. Insufficient organ nutrients do not guilt

   Excessive fat easily clogs blood vessels, so that the blood flow loaded with oxygen and nutrients can not reach each organ of the body smoothly, and the organs cannot obtain sufficient nutrients. For men, it is easy to suffer from erectile dysfunction and guilt-free sex.

   2. Easy to fatigue sexual behavior is not smooth

Too much fat will also cause an increase in adrenaline, which keeps the body in a state of preparation at any time. The cells are easily damaged early and lose their ability to attack. The human body, therefore, ages earlier and is prone to fatigue.

  Sperm is normal and standard sperm health is good for pregnancy

  It seems that obesity is really not harmful to fertility! Because this kind of civilization disease is more and more popular, the number and quality of male sperm will continue to decline. Men with infertility problems often have the problem of insufficient sperm quantity and mobility, which greatly reduces the chance of fertilization. WHO has also revised down the standard of normal semen for men. The current reference values ​​are as follows. Come and see if it meets the standard!

Semen volume: more than 1.5ml; sperm volume: more than 15 million; sperm viability: more than 75% is alive; sperm motility: more than 50% belongs to grade A and B; sperm type: more than 15% is normal type.

   Poor spermatozoa are difficult to fertilize and forge the abdominal muscles to be pregnant

  Males who suffer from infertility often have the problem of insufficient sperm quantity and motility, or the sperm type is not perfect. Like the old and weak soldiers, it is difficult to break the barrier of the egg surface and greatly reduce the chance of fertilization. Therefore, regardless of whether they are “otaku” or “explosive liver” men, they must face up to the problem of abdominal obesity and strengthen the core muscles of the abdominal chain of the forging chain to realize their desire to be a dad!

You can also buy a sex doll to help exercise!

Will it cause gynecological diseases if applied too much?

Normal people have two characteristics: “acidic” and “alkaline”. And this part of the vagina must be weakly acidic to be healthy. Some people may ask, will condom use lead to gynecological diseases? Look down with the editor.

“Acid” and “alkaline” affect women’s health

Normal people have two characteristics: “acidic” and “alkaline”. Usually, the blood, bones, muscles, and heart of the human body are alkaline. However, not all places are the best alkaline. This part of the vagina must be weakly acidic to be healthy. Changes in the vaginal PH value are often ignored by women. In fact, the vagina is affected by external factors that can cause gynecological diseases.
3 reasons that affect the imbalance of vaginal PH

  1. Use alkaline cleaning products. If you use alkaline soap to clean the vulva, rinse the vagina with alkaline toiletries too much, or abuse antibiotics. Then these inadvertent actions may change the acidic environment in the vagina.
  2. Excessive sex life. Two kinds of bacteria in the vagina (pathogenic anaerobic bacteria and Gardnerella) will begin to multiply because of frequent sexual life, and then break the weak acid balance in the vagina.
  3. Use condoms containing alkaline lubricants. Most condoms on the market now choose methyl silicone oil as a lubricant. This is a weakly alkaline substance. After intimate contact with the human body, methyl silicone oil is not easily volatile and insoluble in water, which makes it difficult to clean, and long-term residue in the vagina will also destroy the vaginal acid-base balance.

Will condom use lead to gynecological diseases?

The vagina of a healthy woman is indeed weakly acidic, and a large number of microorganisms live in such an environment. 90% of the microbiome is Lactobacillus. Such an environment is not conducive to bacterial growth. And the weakly acidic environment can eliminate the harmful bacteria from outside. Play a very good defensive role. At the same time, it can inhibit and engulf most germs. When this acidic environment is changed, it does affect women’s natural defense capabilities. This leads to gynecological inflammation.

Although, the causes of PH imbalance include the use of condoms. However, don’t worry, the weakly acidic environment in a woman’s vagina will not change easily with just a few condoms. The use of methyl silicone oil can cause gynecological inflammation. But the female vagina has a certain self-purification effect, this self-purification ability can prevent the invasion of foreign substances. And as long as you choose a condom of a qualified production, and use high-quality condoms with low methyl silicone oil content, pay attention to sexual hygiene, so as to avoid unqualified condoms from damaging the environment in the vagina, and the use of condoms will not increase. Risk of gynecological inflammation.

I know a very good sex toy: mini sex doll

How much is the best physical doll?

As a partner, a sex doll can accompany you to arrange loneliness and pass the boring time. More importantly, it can meet the usual needs and is an important existence.

If you are looking for a partner, you must find the best one. How can we buy a real doll? What is the best entity doll and how much is it?

There are several good things about physical dolls: First, the appearance, beautiful dolls have exquisite faces and perfect proportions, which is also the most attractive place for baby friends, because it is really difficult to find such an ideal girlfriend in reality, and now she At your fingertips, she can really accompany you and satisfy all your fantasies, so the beautiful and beautiful doll is very popular with your friends.

Of course, what is the best look? This is a bit different, just like the female star, everyone will like it differently. Actually, it’s nice to like multiple, what do you think?

The best sex doll is also the production process and materials. The best material at present is the use of silicone materials. The production process mainly includes the production of some material proportions, skeletons, and details. The labor cost is higher, so the price is higher.

So how can you find the best entity doll? Here I recommend to you a Nekane of sexrealdoll. This one uses a silicone head carving. It has a delicate makeup and a very high degree of authenticity. The face is very beautiful. It is the face contour of European and American girls. The facial features are very three-dimensional. The body uses TPE material and soft Q. It’s elastic, and I don’t have to say my body. I’m 158cm tall, I have big breasts and hips, I have bumps and slender legs, I wear sexy ultra-short hoodies, and I like girls in cool styles. This is the gospel of this style. Built-in metal skeleton, you can pose more poses, there is one at home, usually do not have time to idle. More importantly, the combination of the silicone head and the TPE body is very cost-effective. It has a flexible feel and delicate makeup. It is worth buying.