What Does Underwear Choice Have to do with Sperm Count?

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A 2015 Stanford University study found that men who wear boxers during the day and sleep in the buff at night had 25 percent lower rates of damaged DNA in their sperm compared to those who wear tighty-whities day and night.

Earlier studies had indicated that tighter underwear, resulting in elevated scrotal temperatures, may contribute to poor sperm quality, but the results had been inconsistent.

The team of U.S. researchers examined data on 656 men who were part of couples seeking treatment at a fertility centre in America between 2000 and 2017.

Research into the effect of underwear on sperm quality has found that men who opt for airy boxer shorts made much more sperm than those who wore restrictive pairs.

Researchers followed 656 men over 17 years and found that of those who wore boxers, they had a higher sperm concentration, total count of sperm and lower FSH, or follicle-stimulating hormone, levels (high counts can signal a problem with the pituitary gland).

"These results point to a relatively easy change that men can make when they and their partners are seeking to become pregnant", said lead author Lidia Mínguez-Alarcón, of Harvard. Could modern living really be threatening the survival of our species? The hormone is produced by the brain to tell the testes to make more sperm, Chavarro said.

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Men's underwear choice can affect their sperm count and quality, according to a new study by Harvard researchers. Options included boxers, jockeys, bikini, briefs, and other.

The men, between the ages of 32 and 39, were surveyed about the style of underwear they had been wearing for the past three months.

"Potentially switching from tight to loose might help some men who are on the lower edge of sperm production".

Tight underwear decreases sperm count.

Turns out, certain styles of men's underwear may inhibit production of sperm. The authors feel that more research is required in this field covering more aspects like the fabric of the underwear, the different types of trousers wore etc. When men have trouble conceiving, "we hope that there are other ways that we can intervene that have a little more significant science and data to back them up", she said.

"I have to say, though, that had I been working on male factor infertility when my wife and I were trying for a baby, I would have probably bought a few boxers". Participating men were all seeking fertility treatment. Other potentially confounding factors that were not taken into consideration included the type of pants worn, and the textile fabric of the underwear. The researchers also said that other factors also affect scrotal heat: like type of pants, underwear fabric, etc.