1: The penis is a bacterial habitat
The skin on the penis is a homeland for all kinds of bacteria.Lance.Experts from Dr. Prove, Dr. Liu Cindy, and the GM Research Institute of Flegusk in Arizona used genetic testing technology to identify bacteria found on men's penis.Studies have shown a total of 42 unique bacteria on the surface of the penis.Dr. Price told WebMD: "Human body is essentially an ecosystem."
2: Never forgive people
Studies have shown that men will slowly lose their sensitivity when they reach a certain age, but it is difficult to say how to develop it.It is because different researchers have adopted different ways to stimulate the penis and test their sensitivity.In general, the sensitivity of the penis is based on the minimum stimulus felt by testing the men's performance.We call it "the critical value of sensitivity".
Although the research results are different, the data shows a obvious trend after the summary summary.Since the age of 25, sensitivity has begun to decrease.The most obvious decline is between 65 and 75.What we don't know is whether men really notice that their sensitivity is decreased as they grow.Kohler told Webmd if they really noticed this problem, doctors would not ask.He said: "People rarely complain about this. In other words, erectile impairment and difficulty ejaculation are the problem that they often complain."
3: Happy sensitive parts
Many men think that the bottom of the glans and the bottom of the penis is the most sensitive part of the orgasm.The researchers heard 81 healthy men in different areas of sexual desire in different areas of the body, and found that not only the penis was sensitive parts, scrotum, anus, nipples and necks.
For most men, the bottom of the glans and the bottom of the penis is the most sensitive part of the orgasm.The second is the upper part of the glans, the left and right, the sides of the penis, above the penis and foreskin (for a few men who have not cut foreskin).The research results were published in the 2009 "British Urology Magazine".
4: The penis you can't see
Kohler said: "Many men are proud when they learn that their penis lengths are twice the length of their imagination." That was because half of the penis was in the body.Just like you can't see the net height of a large oak tree on the ground, you also can't see the pelvis tightly clinging to the root of the pubic penis, it is hidden.Through the nuclear magnetic resonance image, we can see an erect penis shape like a dart dart.
