Loose underwear may be good for sperm production

Wearing boxer shorts could help conception

For every man in particular was available demographic data and information about their health; also, the study participants provided a sample of his sperm, and information about what kind of underwear they wear most often: boxers (loose pants-shorts), classic shorts briefs (often called "melting"), bikini (skinny trousers with a low rise at the waist), boxer briefs and more. According to a recent study, men who often wore the boxers, had a 25% higher concentration of sperm and is 17% higher sperm count than those men who expressed a preference for cowards another cut.

"Since men can modify the type of underwear they choose to wear, these results may be useful to improve men's testicular function", lead researcher, Dr Lidia Minguez-Alarcon, a research scientist at Harvard TH Chan School of Public Health in Boston, said. Could modern living really be threatening the survival of our species?

Men's underwear can affect fertility.

The sperm were also more lively, and levels of a reproductive hormone were more favourable to generating offspring.

"We set out to take a deep, broad look at the effect of self-reported underwear choice on sperm", he said. Options were: boxers, jockeys, bikini, briefs and "other".

The men, who were between the ages of 32 and 39, completed a survey that included questions about the style of underwear they wore in the previous three months.

"Because of this, we were able to find a potential compensatory mechanism whereby decreased sperm production relating to the type of underwear signals to the hypothalamus to increase secretion of gonadotropin [s], [hormones that act] on the testes and that is reflected by the increased levels of FSH, to try to increase sperm production". The study followed the men through their time in fertility treatment and monitored changes in their sperm, but it did not ask about their underwear choice again after the initial questionnaire.

In the end, the researchers tested the sperm quality by counting the total number of sperm in the samples and their concentration in the seminal fluid and the concentration of the enzymes responsible for sparsogenes. The men in the study were part of a couple seeking help with fertility, so it is possible that some of the women had the fertility problem. Although, the hypothesis needs confirmation by further research.

Dr. Jorge Chavarro, associate professor of nutrition and epidemiology at Harvard, lead author of the study has explained that tight underwear in men such as briefs can raise the scrotal temperatures and this can contribute to a lower sperm count and infertility.

"If you're just walking along in an air conditioned room, it's probably not going to make much difference between boxers and briefs", said Fisch, who was not involved in the study.

Other lifestyle activities of these men were also seen.

The study has still not demonstrated a clear correlation between the type of underwear and sperm count/quality and whether all these sperms translate into pregnancy.

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