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Lidia Mínguez-Alarcón, who is also a research scientist at the Harvard T. Mínguez-Alarcón and colleagues examined men aged 18—56 who did not have a history of vasectomies and were looking to be treated for infertility at the Massachusetts General Hospital in Boston.
The researchers publish their findings in the journal Human Reproduction. The men provided the researchers with semen and blood samples and answered a questionnaire on the type of underwear that they were in the habit of wearing. The questionnaire included boxer shorts, briefs, bikinis, so-called jockeys, and other forms of tight underwear. Overall, more than 50 percent of the men said they usually wore boxers.
These men had a 25 percent "higher sperm concentration," a 17 percent higher total sperm count, and 33 percent more swimming sperm than men who said they didn't usually wear boxers. Additionally, men who reported frequently wearing boxer shorts had 14 percent lower serum levels of follicle-stimulating hormone FSH.
As the study authors explain, FSH drives the production of sperm, and they believe that the higher concentration of FSH in people who do not wear boxers suggests that the hormone gets activated and tries to make up for the testicular damage that other types of underwear might induce.
Importantly, the greatest statistical difference in sperm quality was found between men who wore boxer shorts and men who wore jockeys or briefs. Mínguez-Alarcón explains what sets this study apart from other research, saying, "An important strength of this study is that we were able to investigate the potential relationship between the type of underwear worn and indicators of testicular function such as reproductive hormone levels and DNA damage, which were missing in all previous studies on the topic.
Gonadotropin, the researcher explains, is "a hormone that acts on the testes and that is reflected by the increased levels of FSH. However, "This hypothesis requires confirmation by further research," cautions the investigator.
Also, as the authors mention, the results cannot be generalized to all men because the study participants were already seeking treatment for infertility. Finally, the study did not confirm causality between tight underwear and FSH levels, merely finding a correlation. Even so, the study points to underwear as a potential modifiable risk factor for infertility.
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Register take the tour. Fact checked by Jasmin Collier. The type of underwear a person chooses may influence the quality of their sperm. Sperm created from stem cells offer hope in cases of male infertility. Have a medical question? Connect with an online doctor. The elastic band often has the name of the manufacturer printed on it. There may also be additional elastic sewn around the bottom end of the thigh portion of the garment.
Some boxer briefs have stitching on the rear to outline the buttocks and avoid a central seam. Boxer briefs provide more room for the male genitals than briefs, although they give less concealment from penile protrusion during an erection.
From Wikipedia, the free encyclopedia. This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. June Learn how and when to remove this template message. Rear stitching on these boxer briefs avoids a central seam and outlines the buttocks. Retrieved June 29, The New York Times. Cultural Encyclopedia of the Penis. Long underwear long johns Union suit.
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Briefs are a type of short, snug underwear and swimwear, as opposed to styles where material extends down the thighs. Briefs have various different styles usually with a waistband attached to fabric that runs along the pelvis to the crotch and buttocks and are worn by both men and women. Shop ladies shorts & briefs at Augusta Sportswear. Browse our collection of wholesale shorts for women! Get all the latest styles and brands online today! Be the first to know. Subscribe to get all the latest news and exclusive offers.
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