Physically demanding work tied to higher male fertility, study suggests

A new study from researchers from Brigham and Women’s Hospital, a founding member of the Mass General Brigham healthcare system, suggests that men who regularly lift heavy objects at work have higher sperm counts. The study, published in Human Reproduction, is part of the Environment and Reproductive Health (EARTH) cohort, a clinical study which aims to explore how exposure to environmental chemicals and lifestyle choices affect reproductive health.

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