1. Little brother may lose control.
You may have noticed that his little brother often goes his own way. When you wake up in the morning, you may find that his little brother is building a small tent out of control. Well, in fact, men have weaker control over their little brothers than their arms and legs. It's true. Because the nervous system that controls your little brother is not always under your conscious control, this is called autonomic nervous system, which is also responsible for controlling and regulating heart rate and blood pressure.
Sexual impulses are usually uncontrollable. Consciousness is related to this, but many sexual awakenings are controlled by the sympathetic nervous system. In addition, during REM sleep, nerve impulses in the brain can lead to erection, whether he dreams about sex or forgets to study for exams. Lifting weights or defecating hard can also cause erections. Sometimes, this little brother will get cold feet again.
Dr. Denogmontague, a urologist at Cleveland Medical Center, said: "For a particular man, the size of a loose penis will vary greatly under different circumstances." Contact with cold water or cold air will make the penis contract, which is the function of the sympathetic nervous system.
The younger brother may be a "grower" or a "shower".
There is no consistent correspondence between the length of a relaxed penis and that of a fully erect penis.
A study of 80 volunteers found that the increase of penis length ranged from less than 1/4 inches to 3.5 inches from relaxed state to erect state.
Regardless of the clinical significance of these data, it must be meaningful in the dressing room. When watching a playboy show off his big penis, don't take it for granted that his penis will be bigger when it is erect; Don't ignore anyone's penis when you see it. Maybe his good man will scare you when he gets an erection.
AlfredKinsey, a sexologist, analyzed more than 1000 measurement data. The analysis showed that the shorter penis in relaxed state was often twice as long when erect as in relaxed state.
A penis that does not increase much in length during erection is called "Xiuer", and a penis that increases a lot in length during erection is called "Bianer". This is not a professional medical term, and a reasonable numerical standard has not been established to define what scope is a shower and what scope is a grower.
According to Kinsey's data, most younger brothers are not extreme "showmen" or "growers". Among them, about 12% people grow up less than 1/3 or less when they erect, while 7% people grow up twice when they erect.
The penis looks like a boomerang.
The penis looks like a boomerang. Just as you can't see the whole picture of a big oak tree on the ground, you can't see the root of your penis, which breaks into the pelvis and connects with the pubic bone.
A French researcher studied men and women having sex with a magnetic resonance scanner. He pointed out that the penis obviously looks like a boomerang on MRI.
A surgical procedure called penile lengthening involves cutting the ligament that holds the penis in the pelvis. In this way, after the operation, if the penis can protrude from the body, some people's penis will be slightly longer. But this operation also has side effects. This kind of ligament is called suspensory ligament, which can ensure the stability of erection. After this ligament was cut off, the erect penis lost its upward angle and began to shake from the root. This kind of erection without a solid foundation will lead to personal injury.
4. The penis may break.
There is no bone in the penis, but you can still break his penis. This kind of situation is called "* * fracture", which is not a minor injury. Montague said that when * * breaks, it will be accompanied by "audible cracking sound or cracking sound". At this point, the little brother turned blue and was accompanied by terrible pain.
* * Fractures are rare and usually occur in teenagers. The main reason is that their penile erection is too stiff.
How to avoid the tragedy of fracture? Just don't use your penis too rudely. Montague said that * * fractures are usually caused by men being too violent and fast in sexual life, so that his little brother hits his partner's pubic bone too violently. In addition, when the woman is in the upper position, the woman's too rude action will also break the man's penis.
Most little brothers are not circumcised.
According to the report of the World Health Organization (WHO) and the Joint United Nations Programme on AIDS (UNAIDS), only 30% of men aged 0/5 and above in the world have undergone circumcision.
This ratio varies greatly between different religions and countries. Almost all Jewish and Muslim men have been circumcised, accounting for about 70% of circumcised men in the world.
In areas affected by non-religious factors, the United States has the highest circumcision rate. 75% of non-Jewish and non-Muslim American men have undergone circumcision, which is very high. Only 30% of Canadians, 20% of Britons and 6% of Australians have had circumcision.
Medical and cosmetic male circumcision has been controversial in the United States. Recently, however, the World Health Organization and UNAIDS recommended that adult men be circumcised, on the theoretical basis that the circumcised younger brother has a lower risk of HIV infection.