6 little secrets about a man’s penis

　　1. Use it or lose it.

　　Experts say that, like other parts of the body, the penis also needs regular exercise . The smooth muscles of the penis require constant oxygen supply during engorgement (erection). During sleep, stimulation from the brain can cause an erection. And relevant nerve Injury or damage to nerves or blood vessels from diabetes can cause erection difficulties. Infrequent erections can cause the elasticity of penile tissue to weaken, which can shorten the penis by 1-2 cm.

　　2. The penis is also divided into "manifest" and "recessive".

　　There is no correlation between penis length when flaccid and erect length. A penis that does not increase in length significantly after erection is called a "manifest penis" and a penis that increases a lot in length after erection is called a "recessive penis." Sexology experts tested thousands of people male Measurements of penis size have found that men with shorter penises can grow twice as long when erect compared to men with longer penises when not erect.

　　3. The lower part of the penis is the most sensitive.

　　A study published in the "British Journal of International Urology" found that the lower end of the glans and the underside of the penis are the most sensitive to sexual pleasure, followed by the upper end of the glans, the sides of the penis, the upper part of the penis and the foreskin.

　　4. Sensitivity decreases with age.

　　Several studies have shown that penile sensitivity gradually decreases with age. Studies have found that the greatest decrease in penile sensitivity occurs between the ages of 65 and 75.

　　5. Oscillators also work on the penis.

　　The oscillator is not female Patented for masturbation, it is also suitable for male penis stimulation. Study finds men with spinal cord injuries were able to achieve success with the help of special medical oscillators ejaculation . In this treatment, the oscillator usually stimulates the nervous system under the penis that is involved in ejaculation. Experts say that some male patients who have difficulty ejaculating or reaching orgasm can try using an oscillator.

　　6. The penis is very easy to harbor bacteria.

　　penis skin The foreskin and foreskin can easily harbor a variety of bacteria. Researchers from the Institute of Genomics in Phoenix, Arizona, USA, discovered a total of 42 unique bacterial groups in the foreskin of the penis. After circumcision, the bacterial flora carried by the penis is significantly reduced. A study done in Uganda found that circumcision improves AIDS The infection rate of HIV is reduced by 60%. So for myself and my wife healthy , men should wash their private parts frequently.