Don’t stress for sperm’s sake

Psychological stress degrades sperm quality, according to new research from the US, but some types of stress appear to be worse for male fertility than others.

While job strain was unlikely to be a problem for sperm health, being unemployed had a detrimental effect on its quality, regardless of the level of stress experienced, the study found.

Similarly, perceived life stress (measured subjectively) was associated with reduced sperm concentration, motility and morphology while recognised stressful life events (measured

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