动物实验,性渴望 z-bo 2020-08-17 473

　　A new study shows that pain seems to prevent female mice from continuing to mate, but it does not prevent male mice from mating. In this study, female mice were unwilling to tolerate pain during mating, while male mice wanted to mate during mating. The researchers said the reason may be that male and female mice face different evolutionary pressures. They said that similar creatures, rather than culture, may play a role in the mechanism, which they said is related to human nature.

　　"Infants [female mice], at least because of the gene you want, because of the high costs associated with babies, so please make sure the babies are in good condition and take care of the babies. They may be the authors of the research report and also McGill Canada University’s Jeffrey Mogill. Mogill said the pain may signal to female mice, “They may not be in perfect health, and having children now may not be a good idea. "Mogill said in the "Life Science" magazine: "However, in men, as long as you release sperm, your job is complete. "Then the health of men will not be affected. [Animal Mating: 7 Stories of Naughty Wild Animal Behavior]

　　In order to test the motivation of the mice to mate, the researchers placed male and female mice in the mating room, and placed the female and female in a barrier that includes a door. The isolation door is so small that it cannot be pushed open. However, as long as a woman wants to leave, it is enough to break the barrier between women and men. In this way, researchers can confirm that the mating behavior that occurs is triggered by the female.

　　Male researchers also tested the motivation of male mice to mate and placed them in an inseparable room in which male mice can approach female mice without restriction. Sexual desire tests were performed on male and female mice by injecting chemicals that cause inflammatory pain into the genitals and other parts of the body (legs, tail, cheeks, etc.). When the researchers injected painkillers or libido enhancers into female mice, the negative effects of pain on female libido were reversed. The researchers pointed out that this finding may provide clues for the formation of female sexual impulses. Although some people believe that women's sexual desire (or lack) is mainly controlled by cultural expectations, this study shows that certain mechanisms of sexual behavior are derived from biology. Being displayed. Mogil said that this research also helps clarify certain human health issues. He said that in humans, loss of libido often occurs in patients with chronic pain, but this animal study helps researchers better understand what this is. We also tested two drugs used as libido enhancers in mice, apomorphine and melatonin II, and found that they can increase libido only when the mice are in pain. Mogil said: "Therefore, we think this may contribute to the development of potential libido enhancers in the future."