Obesity Linked to Lower Sperm Counts in Young Men

Young men who are obese may have a lower sperm count than their normal-weight counterparts, a new study suggests. The findings, reported in the journal Fertility and Sterility, add to evidence tying obesity to relatively poorer quality sperm.

A number of recent studies have found that compared with leaner men, obese men tend to have lower sperm counts, fewer rapidly mobile sperm and fewer progressively motile sperm, which refers to sperm that swim forward in a straight line rather than moving about aimlessly.

What all of this might mean for an obese younger man's chances of becoming a father is unclear. Studies have so far come to conflicting conclusions as to whether obesity actually impairs a man's fertility.

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