Occupational factors, such as physical demands and work schedules, were associated with higher sperm concentrations and serum testosterone among men in the EARTH study. A new study from researchers from Brigham and Women’s Hospital, a founding member of the Mass General Brigham healthcare system,
A new study from Brigham and Women’s Hospital suggests that occupational factors, such as physical demands and work schedules, are associated with higher sperm concentrations and serum testosterone among men. The study highlights how physical activity during work may contribute to significant improvement in men’s reproductive potential.
“We already know that exercise is associated with multiple health benefits in humans, including those observed on reproductive health, but few studies have looked at how occupational factors can contribute to these benefits,” said first author Lidia Mínguez-Alarcón, a reproductive epidemiologist in Brigham’s Channing Division of Network Medicine and co-investigator of the EARTH study.
The EARTH study is a collaboration between the Harvard T. Chan School of Public Health and Mass General Brigham to evaluate the effect of environment and lifestyle factors on fertility. EARTH has collected samples and survey data from over 1,500 men and women, and the current study focused on a subset of these participants, including 377 male partners in couples seeking treatment at a fertility center.
While the current study found a relationship between physical activity and fertility in men seeking fertility treatment, it will take further research to confirm if these findings hold true for men from the general population. The researchers also hope that future studies will reveal the underlying biological mechanisms at play.
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