The reproductive health of the average male is in sharp decline, the world's largest study of the quality and concentration of sperm has found.

Men trying to improve their sperm count can ditch the healthy living advice but should think carefully about their underwear, doctors in Britain have found.

Heated car seats may be damaging men's chances of fatherhood.

More than four decades after boxers were first touted as the underwear of choice for optimizing male fertility, the theory that boxers beat briefs has been put to the test and found to be invalid by researchers from the State University of New York.

It has been proposed that brief style underwear may produce scrotal hyperthermia and lead to clinical subfertility. Although this idea is regarded as dogma by many in the lay community and the changing of underwear type is a therapy frequently recommended by medical practitioners, there is a paucity of data measuring scrotal temperature as a function of underwear type.

The concept that an elevation of testicular temperature results in impairment of spermatogenesis is widely accepted. Here, current knowledge concerning genital heat stress and its consequences in men is reviewed.

This week the UK press has been buzzing over a new study that finds that for men with infertility issues, lifestyle changes such as cutting smoking and alcohol don't make much of a difference. But avoiding tight-fitting underwear does. On Wednesday, the National Health Service issued a report that it hopes will clear the air, claiming the study's findings were "overblown" for hype.

Most men have a preference for boxers or briefs, but which are better when it comes to fertility?

Men trying to improve their sperm count “can ditch the healthy living advice but should think carefully about their underwear”, said The Independent. Apparently the type of undies you wear has more influence over your sperm quality than smoking, drinking or an unhealthy diet.

Testicular temperature correlates highly with scrotal temperature. The aim of this study was to evaluate the influence of the type of undertrousers on scrotal temperature during standardized periods of sitting and walking.