Add Yahoo as a preferred source to see more of our stories on Google. Men with physically taxing jobs that require them to regularly lift heavy objects have higher sperm counts, a new study suggests.

Humans have built cranes capable of lifting ridiculously heavy objects and moving them around with ease. We have also designed massive ships to transport large, heavy cargo across thousands of miles ...

BOSTON - Local researchers have found that men who lift heavy objects may have higher sperm counts. Researchers from Brigham and Women's Hospital found that among couples seeking treatment for ...

Men with physically taxing jobs that require them to regularly lift heavy objects have higher sperm counts, a new study suggests. The study, conducted by researchers from Harvard TH Chan School of ...